435.0000
Family
Ericaceae Juss.; Gen. Pl. 159 (1789), nom. cons.
127 genera, ca. 4500 spp. The inclusion of Empetraceae, Pyrolaceae, Epacridaceae and Monotropaceae follows conclusive molecular evidence.
Species listed in database: 4551; hybrids: 125
= Andromedaceae Döll; Rhein. Fl. 428 (1843)
= Arbutaceae Bromhead; Mag. Nat. Hist., n. s. 4: 337, 338 (1840)
= Arctostaphylaceae J.Agardh; Theoria Syst. Pl. 106 (1858)
= Azaleaceae Vest; Anleit. Stud. Bot. 272, 294 (1818)
= Diplarchaceae Klotzsch; Allgem. Deutsch. Nat. Hist. Zeit. 3: 230 (1857)
= Empetraceae Hook. & Lindl.; W. J. Hook., Fl. Scot. 297 (1821), nom. cons.
= Epacridaceae R.Br.; Prodr. 535 (1810), nom. cons.
= Hypopityaceae Klotzsch; Linnaea 24: 11 (1851)
= Ledaceae J.F.Gmel.; Allg. Gesch. Pflanzengifte, ed. 2: 404 (1803)
= Menziesiaceae Klotzsch; Linnaea 24: 11 (1851)
= Monotropaceae Nutt.; Gen. N. Amer. Pl. [Nuttall] 1: 272 (1818), nom. cons.
= Oxycoccaceae A.Kern.; Pflanzenleben 2: 713, 714 (1891)
= Prionotaceae Hutch.; Evol. Phylog. Fl. Pl. 306 (1969)
= Pyrolaceae Lindl.; Syn. Brit. Fl. 175 (1829), nom. cons.
= Rhododendraceae Juss.; Gen. Pl. 158 (1789)
= Rhodoraceae Vent.; Tabl. Règne Vég. 2: 449 (1799)
= Salaxidaceae J.Agardh; Theoria Syst. Pl. 104 (1858)
= Salazariaceae F.A.Barkley; Phytologia 32: 304 (1975)
= Stypheliaceae Horan.; Prim. Lin. Syst. Nat. 72 (1834)
= Vacciniaceae DC. ex Perleb; Vers. Arzneikr. Pfl. 228 (1818), nom. cons.
435.5501
Genus
Rhododendron L.; Sp. Pl. ed. 1, 392 (1753)
Distribution: Europe (9), Asia, esp. China (ca. 560), Himalayas and montane Malesia, esp. New Guinea (174), Australia (1), North America (ca. 25); Russia (S-Siberia, Far East) and Caucasus (ca. 20). Following molecular results, the genus is taken in a broad sense, including Ledum, Menziesia and others.
Species listed in database: 1085; hybrids: 76
= Anthocoma K.Koch; Hort. Dendrol. 338 (1853)
= Anthodendron Rchb.; Moessl. Handb. 1: p. 40: 244, 308 (1827)
= Azalea L.; Sp. Pl. 1: 150 (1753), nom. rej.
= Azaleastrum Rydb.; Mem. New York Bot. Gard. 1: 297 (1900)
= Biltia Small; Fl. S.E. U.S. [Small] 884 (1903)
= Candollea Baumg.; Cat. Hort. Bollw. (1810)
= Chamaecistus Regel; Gartenflora 60 (1874)
= Chamaerhododendron Mill.; Gard. Dict. Abr., ed. 4 (1754)
= Diplarche Hook.f. & Thomson; Hooker´s J. Bot. Kew Gard. Misc. 6: 382. t. 11 (1854)
= Dulia Adans.; Fam. 2: 165 (1763)
= Haustrum Noronha; Verh. Batav. Genootsch. Kunst. 5(4): 2 (1790), nom. nud.
= Hochenwartia Crantz; Inst. 2: 468 (1766)
= Hymenanthes Blume; Bijdr. Fl. Ned. Ind. 862 (1826)
= Iposues Raf.; Autik. Bot. 186 (1840)
= Ledum Ruppius ex L.; Sp. Pl. 391 (1753)
= Loiseleria Rchb.; Fl. Germ. Excurs. 1: 416 (1831)
= Menziesia Sm.; Pl. Ic. Ined. I. 56 (1791)
= Osmothamnus DC.; Prod. 7: 715 (1839)
= Plinthochroma Dulac; Fl. Hautes-Pyrénées 419 (1867)
= Rhodora L.; Sp. Pl., ed. 2, 561 (1763)
= Rhodothamnus Lindl. & Paxton; Paxton´s Fl. Gard. 1: t. 22 (1850), nom. illeg.
= Stemotis Raf.; Sylva Tellur. 152 (1838)
= Theis Salisb. ex DC.; Prod. 7: 715 (1835)
= Theis Salisb. ex DC.; Prodr. [A. P. de Candolle] 7: 715 (1839), nom. inval.
= Therorhodion (Maxim.) Small; N. Amer. Fl. 29: 45 (1914)
= Tsusiophyllum Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 12 (1871)
= Tsutsusi Adans.; Fam. 2: 164 (1763)
= Vireya Blume; Bijdr. Fl. Ned. Ind. 854 (1826)
= Waldemaria Klotzsch; Bot. Ergeb. Waldem. Reise, 99 (1862)
= xAzaleodendron Rodigas; Gard. Chron., Ser. 3, 13: 665 (1893)
= xLedodendron F.de Vos; Quart. Bull. Amer. Rhododendron Soc. 16: 272 (1962)
= xRhodazalea Anon.; J. Soc. Natl. Hort. France, sér. 4, 9: 328 (1908)
species :
Rhododendron aberconwayi
Cowan; Rhododendron Year Book 1948: 42 (1948)
Distribution: China (C-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
Synonyms: hidden
= Rhododendron maxiongense C.Q.Zhang & D.Paterson; Novon 13: 156 (2003)
species :
Rhododendron abhayae
L.K.Rai; NeBIO 5(2): 27 (2014)
Distribution: India (Sikkim)
40 IND
species :
Rhododendron abietifolium
Sleumer; Blumea 11: 122 (1961)
Distribution: N-Borneo (Sabah)
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron acrophilum
Merr. & Quisumb.; Philipp. J. Sci. 82: 333 (1954)
Distribution: Palawan
42 PLW
Remarks: Subgen. Rhododendron
species :
Rhododendron acuminatum
Hook.f.; Hooker´s Icon. Pl., t. 886 (1852)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron adamsii
Rehder; Wilson & Rehder, Monogr. Azaleas, 190 (1921)
Distribution: Siberia (Buryatia, Chita, Irkutsk, Krasnoyarsk, Tuva, Yakutia); Russian Far East (Amur, Khabarovsk, Magadan, Sakhalin); Mongolia
30 SIB 31 RFE 37 MON
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
Synonyms: hidden
= Azalea fragrans Adams; Mém. Acad. Petersb. 2: 332 (1808)
= Azalea multiflora Turcz. ex DC.; Prodr. [A. P. de Candolle] 7: 715 (1839)
= Osmothamnus fragrans (Adams) DC.; Prod. 7: 715 (1839)
= Rhododendron anthopogon var. fragrans B.Fedtsch.; Fl. Asiat. Ross. 9: 15 (1916)
= Rhododendron fragrans (Adams) Maxim.; Rhod. As. Or. 16 (1870)
species :
Rhododendron adenanthum
M.Y.He; J. Sichuan Univ., Nat. Sci. Ed. 1984(1): 94, photo 2 (1984)
Distribution: China (NE-Guangxi)
36 CHI
species :
Rhododendron adenobracteum
X.F.Gao & Y.L.Peng; Acta Bot. Yunnan. 26(5): 493 (2004)
Distribution: China (Sichuan)
36 CHI
species :
Rhododendron adenogynum
Diels; Notes Roy. Bot. Gard. Edinburgh 5(25): 216 (1912)
Distribution: China (SW-Sichuan, NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Rhododendron adenophorum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 211-212 (1916)
species :
Rhododendron adenopodum
Franch.; J. Bot. (Morot) 9(21): 391-392 (1895)
Distribution: China (E-Sichuan, W-Hubei, Chongqing)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
Synonyms: hidden
= Rhododendron simiarum subsp. youngae (W.P.Fang) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 329 (1979)
= Rhododendron youngae W.P.Fang; Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 12: 24 (1939)
species :
Rhododendron adenosum
(Cowan & Davidian) Davidian; Quart. Bull. Amer. Rhododendron Soc. 32(2): 81 (1978)
Distribution: China (SW-Sichuan); ?India (?Arunachal Pradesh)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Glischra
Synonyms: hidden
= Rhododendron glischrum var. adenosum Cowan & Davidian; Notes Roy. Bot. Gard. Edinburgh 21(3): 147 (1953)
= Rhododendron kuluense D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36: 116 (1978), nom. nov. superfl.
species :
Rhododendron adinophyllum
Merr.; Not. Nat. Acad. Nat. Sci. Philad. No. 47, 3 (1940)
Distribution: N-Sumatra
42 SUM
Remarks: Subgen. Rhododendron
species :
Rhododendron aequabile
J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 3, 13: 451 (1935)
Distribution: Sumatra
42 SUM
species :
Rhododendron aeruginosum
Hook.f.; Rhododendron Sikkim Himalaya 23, t. 22 (1849)
Distribution: S-Tibet; Nepal; Bhutan; N-India (Sikkim, Chumbi)
36 TIB 40 BHU IND NEP
Synonyms: hidden
= Rhododendron campanulatum subsp. aeruginosum (Hook.f.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 329 (1979)
= Rhododendron campanulatum var. aeruginosum (Hook.f.) Cowan & Davidian; Rhododendron Year Book 4: 168 (1949), isonym
= Rhododendron campanulatum var. aeruginosum (Hook.f.) G.Nicholson; Ill. Dict. Gard. 3: 293 (1886)
species :
Rhododendron afghanicum
Aitch. & .Hemsl.; J. Linn. Soc. 18: 75 (1880)
Distribution: Afghanistan (Laghman, Paktia / Khost); Pakistan (Kurram)
34 AFG 40 PAK
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Afghanica
species :
Rhododendron aganniphum
Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 80-81 (1917)
Distribution: China (S-Qinghai, W-Sichuan, NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Rhododendron aganniphum var. glaucopeplum (Balf.f. & Forrest) T.L.Ming; Acta Bot. Yunnan. 6(2): 165 (1984)
= Rhododendron glaucopeplum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 46-47 (1920)
variant :
var. flavorufum
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 119 (1978)
Distribution: China (SW-Sichuan, NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron flavorufum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 65-69 (1919)
variant :
var. schizopeplum
(Balf.f. & Forrest) T.L.Ming; Acta Bot. Yunnan. 6(2): 165 (1984)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron doshongense Tagg; Notes Roy. Bot. Gard. Edinburgh 15: 310 (1927)
= Rhododendron fissotectum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 44-45 (1920)
= Rhododendron schizopeplum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 131-133 (1919)
species :
Rhododendron agathodaemonis
J.J.Sm.; Repert. Spec. Nov. Regni Veg. 12: 209 (1913)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron alabamense
Rehder; Wilson & Rehder, Monogr. Azaleas, 141 (1921)
Name: Alabama azalea
Distribution: USA (Alabama, Florida, Georgia, Mississippi, Tennessee)
78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea alabamensis (Rehder) Ashe; J. Elisha Mitchell Sci. Soc. 38(1-2): 90 (1922) in clavi
= Azalea nudiflora var. alba Mohr; Pl. Life Alabama 653 (1901), nom. illeg.
species :
Rhododendron albertsenianum
Forrest in Balf.f.; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 21-23 (1919)
Distribution: China (W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron albiflorum
Hook.; Fl. Bor. Amer. 2: 43. t. 33 (1834); ex Graham in Edinb. N. Phil. J. 24: 422 (1838)
Name: Cascade azalea
Distribution: Canada (Alberta, British Columbia); USA (Colorado, Idaho, Montana, Oregon, Washington State)
71 CDN 73 USA
Remarks: Subgen. Candidastrum
Synonyms: hidden
= Azalea albiflora (Hook.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Azaleastrum albiflorum (Hook.) Beck & Abel; Wiener Ill. Gart.-Zeitung 13: 435 (1888)
= Azaleastrum albiflorum (Hook.) Rydb.; Mem. New York Bot. Gard. 1: 297 (1900)
= Azaleastrum albiflorum subsp. warrenii (A.Nelson) W.A.Weber; Phytologia 79(2): 65 (1995 publ. 1996)
= Azaleastrum warrenii A.Nelson; Bot. Gaz. 56: 67 (1913)
= Cladothamnus campanulatus Greene; Erythea 3: 65 (1895)
= Rhododendron albiflorum f. poikilon J.K.Henry; Torreya 14: 46 (1914)
= Rhododendron albiflorum var. warrenii (A.Nelson) M.A.Lane; Rhodora 95: 18 (1993), without basionym ref.
= Rhododendron album Hoffmanns.; Verz. Pfl. 192 (1824)
= Rhododendron warrenii (A.Nelson) J.F.Macbr.; Contr. Gray Herb. n. s. 56: 55 (1918)
species :
Rhododendron alborugosum
Argent & J.Dransf.; Notes Roy. Bot. Gard. Edinburgh 46(1): 27 (1989)
Distribution: Borneo (Kalimantan)
42 BOR
species :
Rhododendron albrechtii
Maxim.; Bull. Acad. Petersb. 15: 227 (1871)
Distribution: Japan (Hokkaido, Honshu)
38 JAP
Remarks: Subgen. Pentanthera, Sect. Sciadorhodion
Synonyms: hidden
= Azalea albrechtii (Maxim.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron albrechtii f. albiflorum T.Yamaz.; Rev. Gen. Rhododendron Japan, Taiwan, Korea & Sakhalin 121 (1996)
= Rhododendron albrechtii f. canescens Sugim.; J. Geobot. 22(4): 52 (1975)
= Rhododendron albrechtii f. hypoleucum (Honda) H.Hara; Enum. Spermatophytarum Japon. 1: 27 (1948)
species :
Rhododendron album
Blume; Cat. Gew. Buitenz. 72 (1823)
Distribution: Java
42 JAW
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Azalea alba (Blume) Blume ex DC.; Prodr. [A. P. de Candolle] 7: 721 (1839)
= Stemotis album (Blume) Raf.; Sylva Tellur. 153 (1838)
= Vireya alba (Blume) Blume; Bijdr. Fl. Ned. Ind. 855 (1826)
species :
Rhododendron alternans
Sleumer; Reinwardtia 5: 159 (1960)
Distribution: C-Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
species :
Rhododendron alticolum
Sleumer; Reinwardtia 5: 164 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron alutaceum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 81-83 (1917)
Distribution: China (W-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Rhododendron globigerum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 259 (1922)
= Rhododendron roxieanum var. globigerum (Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 119 (1978)
variant :
var. iodes
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 39(2): 350, Map 104 (1982)
Distribution: China (Sichuan, NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron iodes Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 49-50 (1920)
variant :
var. russotinctum
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 119 (1978)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron russotinctum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 129-131 (1919)
= Rhododendron triplonaevium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 62-63 (1920)
= Rhododendron tritifolium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 63 (1920)
species :
Rhododendron amagianum
(Makino) Makino ex H.Hara; Enum. Spermatophytarum Japon. 1: 27 (1948)
Distribution: Japan (Honshu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Azalea amagiana Makino; J. Jap. Bot. 7: 21 (1931)
= Rhododendron weyrichii var. amagianum (Makino ex H.Hara) Hatus.; Sci. Rep. Yokosuka City Mus. 15: 23 (1969)
species :
Rhododendron amakusaense
(Takada ex T.Yamaz.) T.Yamaz.; J. Jap. Bot. 62(3): 72 (1987)
Distribution: Japan (Kyushu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Rhododendron viscistylum var. amakusaense K.Takada ex T.Yamaz.; J. Jap. Bot. 59: 205 (1984)
species :
Rhododendron amandum
Cowan; Notes Bot. Gard. Edinb. 19: 245 (1937)
Distribution: Tibet
36 TIB
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron ambiguum
Hemsl.; Bot. Mag. t. 8400 (1911)
Distribution: China (C-Sichuan, W-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora. Probably syn. of R. wongii
Synonyms: hidden
= Rhododendron chengshienianum W.P.Fang; Ic. Pl. Omeiensium 1: t. 36 (1942)
species :
Rhododendron amesiae
Rehder & E.H.Wilson; Sarg., Pl. Wilson. 1: 523 (1913)
Distribution: China (W-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora
species :
Rhododendron amundsenianum
Hand.-Mazz.; Anz. Akad. Wiss. Wien, Math.-Nat. 58: 25 (1921)
Distribution: China (SW-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
species :
Rhododendron anagalliflorum
Wernham; Trans. Linn. Soc. London, Bot. 9: 94 (1916)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron linnaeoides Schltr.; Bot. Jahrb. Syst. 55: 144 (1917)
species :
Rhododendron andrineae
Danet; Adansonia 34(2): 347 (2012)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron angiense
J.J.Sm.; Nova Guinea 12: 133 (1914)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Synonyms: hidden
= Rhododendron culminicola var. angiense (J.J.Sm.) Sleumer; Blumea 12: 114 (1963)
species :
Rhododendron angulatum
J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 2, 8: 50 (1912)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron annae
Franch.; J. Bot. (Morot) 12(15-16): 258 (1898)
subspecies :
subsp. annae
Distribution: China (W-Guizhou)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
subspecies :
subsp. laxiflorum
(Balf.f. & Forrest) T.L.Ming; Acta Bot. Yunnan. 6(2): 149-150 (1984)
Distribution: China (W-Yunnan)
36 CHI
Synonyms: hidden
= Rhododendron hardingii Forrest ex Tagg; Spec. Rhododendron 344 (1930), et Notes Bot. Gard. Edinb. 16: 196 (1931), latine
= Rhododendron laxiflorum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 50-51 (1920)
species :
Rhododendron anthopogon
D.Don; Mem. Wern. Nat. Hist. Soc. 3: 409 (1821)
subspecies :
subsp. anthopogon
Distribution: S-Tibet; Nepal; Bhutan; N-India (Arunachal Pradesh, Himachal Pradesh, Sikkim, Uttarakhand, West Bengal, Darjeeling); Myanmar (Kachin)
36 TIB 40 BHU IND NEP 41 MYA
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
Synonyms: hidden
= Rhododendron anthopogon var. album Davidian; Quart. Bull. Amer. Rhododendron Soc. 34(4): 215 (1980)
= Rhododendron anthopogon var. haemonium (Balf.f. & R.E.Cooper) Cowan & Davidian; Rhododendron Year Book 2: 68 (1947)
= Rhododendron aromaticum Wall.; Numer. List [Wallich] no. 1520 (1829), nom. inval.
= Rhododendron haemonium Balf.f. & R.E.Cooper; Notes Roy. Bot. Gard. Edinburgh 9: 233 (1916)
subspecies :
subsp. hypenanthum
(Balf.f.) Cullen; Notes Roy. Bot. Gard. Edinburgh 37(2): 327 (1979)
Distribution: S- & SE-Tibet; Pakistan (Astor, Nanga Parbat, Baltistan, Gilgit); Nepal; Bhutan; N-India (Himachal Pradesh, Jammu & Kashmir, Uttarakhand, Sikkim)
36 TIB 40 BHU IND NEP PAK
Synonyms: hidden
= Rhododendron anthopogon var. hypenanthum (Balf.f.) H.Hara; Enum. Fl. Pl. Nepal 3: 56 (1982)
= Rhododendron hypenanthum Balf.f.; Not. Bot. Gard. Edinb. 291 (1916)
species :
Rhododendron anthopogonoides
Maxim.; Bull. Acad. Petersb. 23: 350 (1877)
Distribution: China (Gansu, Qinghai, NW-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
Synonyms: hidden
= Azalea anthopogonodes (Maxim.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron anthosphaerum
Diels; Notes Roy. Bot. Gard. Edinburgh 5(25): 215 (1912)
Distribution: China (SW-Sichuan, NW-Yunnan); SE-Tibet; NE-Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
Synonyms: hidden
= Rhododendron anthosphaerum subsp. hylothreptum (Balf.f. & W.W.Sm.) Tagg; Spec. Rhododendron 337 (1930)
= Rhododendron anthosphaerum var. eritimum (Balf.f. & W.W.Sm.) Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 261 (1989)
= Rhododendron chawchiense Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 247 (1922)
= Rhododendron eritimum Balf.f. & W.W.Sm.; Trans. Bot. Soc. Edinburgh 27(2): 190-192 (1917)
= Rhododendron eritimum subsp. chawchiense (Balf.f. & Farrer) Tagg; Spec. Rhododendron 343 (1930)
= Rhododendron eritimum subsp. gymnogynum (Balf.f. & Forrest) Tagg; Spec. Rhododendron 343 (1930)
= Rhododendron eritimum subsp. heptamerum (Balf.f.) Tagg; Spec. Rhododendron 343 (1930)
= Rhododendron eritimum subsp. persicinum (Hand.-Mazz.) Tagg; Spec. Rhododendron 343 (1930)
= Rhododendron gymnogynum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 47 (1920)
= Rhododendron heptamerum Balf.f.; Notes Roy. Bot. Gard. Edinburgh 13(61): 48 (1920)
= Rhododendron hylothreptum Balf.f. & W.W.Sm.; Trans. Bot. Soc. Edinburgh 27(2): 195-199 (1917)
= Rhododendron persicinum Hand.-Mazz.; Akad. Wiss. Wien, Math.-Naturwiss. Kl., Anz. 60: 97 (1924)
species :
Rhododendron anwheiense
E.H.Wilson; J. Arnold Arbor. 6(3): 163 (1925)
Distribution: China (Anhui, Zhejiang, Jiangxi, Hunan, Guangxi)
36 CHI
Synonyms: hidden
= Rhododendron maculiferum subsp. anhweiense (E.H.Wilson) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 118 (1978)
species :
Rhododendron aperantum
Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 13: 231 (1922)
Distribution: China (NW-Yunnan); NE-Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron apiense
Argent; Folia Malaysiana 4(2): 102 (2003)
Distribution: Borneo (Sarawak)
42 BOR
species :
Rhododendron apoanum
Stein; Gartenflora (1885) 194. t. 1196
Distribution: Philippines (Mindanao)
42 PHI
Remarks: Subgen. Rhododendron
species :
Rhododendron apradae
U.Rai & Lama; Pleione 10(2): 371 (2016)
Distribution: India (Darjeeling)
40 IND
Remarks: status unconfirmed
species :
Rhododendron araiophyllum
Balf.f. & W.W.Sm.; Trans. Bot. Soc. Edinburgh 27(2): 184-187 (1917)
subspecies :
subsp. araiophyllum
Distribution: China (Yunnan); Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
subspecies :
subsp. lapidosum
(T.L.Ming) M.Y.Fang; Proc. Fourth Internat. Rhodod. Conf. 57 (1989), et Bull. Bot. Res. North-East. Forest. Inst. 12(3): 221 (1992), et Fl. Reipubl. Popularis Sin. 57(2): 133 (1995)
Distribution: China (NE-Yunnan)
36 CHI
Synonyms: hidden
= Rhododendron lapidosum T.L.Ming; Acta Bot. Yunnan. 3(1): 113-115, f. 1, 1-5 (1981)
species :
Rhododendron arborescens
(Pursh) Torr.; Fl. N. Middle U. St. 1: 425 (1824)
Name: Smooth azalea
Distribution: USA (Alabama, Georgia, Kentucky, Maryland, Mississippi, North Carolina, New York, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia)
75 USA 78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea arborea Barton ex Pursh; Fl. Amer. Sept. 1: 153 (1813), nom. illeg.
= Azalea arborescens Pursh; Fl. Am. Sept. 1: 153 (1813)
= Azalea arborescens var. richardsonii Ashe; J. Elisha Mitchell Sci. Soc. 38: 91 (1922)
= Azalea fragrans Raf.; Ann. Nat. 1: 12 (1820), nom. illeg.
= Azalea verticillata Lodd. ex Bosse; Vollst. Handb. Bl.-Gärtn. 1: 240 (1829)
= Rhododendron arborescens f. flavescens Rehder; J. Arnold Arbor. 7: 244 (1926)
= Rhododendron arborescens f. rubescens Rehder; J. Arnold Arbor. 7: 244 (1926)
= Rhododendron arborescens var. richardsonii Rehder; Wils. & Rehd., Monogr. Azaleas 168 (1921)
species :
Rhododendron arboreum
Sm.; Exot. Bot. 1: 9, t. 6 (1805)
subspecies :
subsp. arboreum
Distribution: China (W-Guizhou); S-Tibet; Pakistan (Swat, Hazara, Murree); Nepal; Bhutan; N-India (Arunachal Pradesh, Himachal Pradesh, Jammu & Kashmir, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, Uttarakhand, West Bengal); Myanmar (Chin, Kachin, Mandalay, Mon, Shan)
36 CHI TIB 40 BHU IND NEP PAK 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Arborea
Synonyms: hidden
= Azalea arborea (Sm.) Kuntze; Revis. Gen. Pl. 2: 386 (1891), nom. illeg.
= Rhododendron arboreum subsp. windsorii (Nutt.) Tagg; Stevenson, Spec. Rhododendron 16 (1930)
= Rhododendron arboreum var. niveum Van Houtte; Hort. Belge 1: 241 (1833)
= Rhododendron cordifolium Dehnh.; Cat. Horti Camald., ed. 2: 23 (1832)
= Rhododendron gloxiniflorum Millais; Rhododendrons, 174 (1917)
= Rhododendron nepalense Voss; Vilm. Blumengärtn. ed. 3. 1: 583 (1894), pro syn.
= Rhododendron puniceum Roxb.; Fl. Ind. [Roxburgh] 2: 409 (1832)
= Rhododendron rollissonii Lindl.; Edwards´s Bot. Reg. 29: t. 25 (1843)
= Rhododendron undulatum Steud.; Nomencl. Bot., ed. 2, 2: 451 (1841), nom. inval.
= Rhododendron venustum Salisb.; Prodr. Stirp. Chap. Allerton 287 (1796), nom. superfl.
= Rhododendron windsorii Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 357 (1853)
= Stemotis coccineum Raf.; Sylva Tellur. 153 (1838)
= Stemotis roseum Raf.; Sylva Tellur. 153 (1838)
subspecies :
subsp. albotomentosum
(Davidian) D.F.Chamb.; R. H. S. Rhododendron Handb. 1998: 350 (1998)
Distribution: Myanmar
41 MYA
Synonyms: hidden
= Rhododendron delavayi var. albotomentosum Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 308, 75 (1989)
subspecies :
subsp. cinnamomeum
(Wall. ex Lindl.) Tagg; Spec. Rhododendron 15 (1930)
Distribution: S-Tibet; W-Nepal; India (Sikkim, West Bengal - Darjeeling); Vietnam
36 TIB 40 IND NEP 41 VIE
Synonyms: hidden
= Rhododendron arboreum subsp. campbelliae (Hook.f.) Tagg; Spec. Rhododendron 15 (1930)
= Rhododendron arboreum var. cinnamomeum (Wall. ex G.Don) Lindl.; Edwards´s Bot. Reg. 23: t. 1982 (1837)
= Rhododendron campbelliae Hook.f.; Rhododendron Sikkim Himalaya pl. 6 (1849)
= Rhododendron cinnamomeum Wall. ex G.Don; Gen. Hist. 3: 844 (1834)
= Rhododendron shingbae C.S.Purohit & Ram.Kumar; Rhododendron (Melbourne) 58: 79 (2018)
variant :
var. roseum
Lindl.; Bot. Reg. 15: pl. 1240 (1829)
Distribution: SE-Tibet; W-Nepal; Bhutan; NE-India (Arunachal Pradesh, Sikkim West Bengal - Darjeeling)
36 TIB 40 BHU IND NEP
Synonyms: hidden
= Rhododendron album Buch.-Ham. ex D.Don; Prodr. Fl. Nepal. 154 (1825), nom. inval.
= Rhododendron arboreum f. album (Wall.) Tagg; Stevenson, Spec. Rhododendron 16 (1930)
= Rhododendron arboreum var. album (Wall.) D.Bhattach.; M. Sanjappa & Sastry Fasc. Fl. India 25. 91 (2014)
= Rhododendron arboreum var. album Wall.; Pl. Asiat. Rar. [Wallich] 2: 23, pl. 123 (1830)
= Rhododendron arboreum var. roseum (Lindl.) W.K.Hu; Bull. Bot. Res., Harbin 8(3): 59 (1988)
= Rhododendron morsheadianum Millais; Rhododendrons, ser. 2: 189 (1924)
subspecies :
subsp. nilagiricum
(Zenker) Tagg; Spec. Rhododendron 15 (1930)
Distribution: India (Karnataka, Kerala, Tamil Nadu)
40 IND
Synonyms: hidden
= Rhododendron nilagiricum Zenker; Ann. Sci. Nat. Ser. 2, 6: 150
= Rhododendron arboreum var. nilagirica (Zenker) C.B.Clarke; Fl. Brit. India [J. D. Hooker] 3: 466 (1882)
subspecies :
subsp. zeylanicum
(Booth) Tagg; Species of Rhododendron 16 (1930)
Distribution: Sri Lanka
40 SRL
Synonyms: hidden
= Rhododendron zeylanicum T.J.Booth; Gard. Chron. 1850: 150 (1850)
species :
Rhododendron archboldianum
Sleumer; Reinwardtia 5: 121 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron ardii
Hutabarat, Mambrasar & Mustaqim; Taiwania 67(1): 120 (2022)
Distribution: Sulawesi
42 SUL
species :
Rhododendron arenicolum
Sleumer; Reinwardtia 5: 113 (1960)
Distribution: SW-Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
species :
Rhododendron arfakianum
Becc.; Malesia 1: 201 (1878)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron undulaticalyx J.J.Sm.; Gibbs, Phytogeogr. & Fl. Arfak Mts. 168 (1917)
species :
Rhododendron argipeplum
Balf.f. & R.E.Cooper; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 213-214 (1916)
Distribution: S-Tibet; Bhutan; N-India (Arunachal Pradesh, Sikkim)
36 TIB 40 BHU IND
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Barbata
Synonyms: hidden
= Rhododendron barbatum var. smithii C.B.Clarke; Hook.f., Fl. Brit. India [J. D. Hooker] 3: 469 (1882)
= Rhododendron macrosmithii Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 113 (1989) (nom. nov. superfl.)
= Rhododendron smithii Nutt. ex Hook.; Bot. Mag. 85: t. 5120 (1859) (not Sweet (1830)
species :
Rhododendron argyrophyllum
Franch.; Bull. Soc. Bot. Fr. 33: 231 (1886); et in Nouv. Arch. Mus. Paris, Ser. 2, 10: 48 (1887 publ. 1888)
subspecies :
subsp. argyrophyllum
Distribution: China (SW-Sichuan, NW-Guizhou, NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
Synonyms: hidden
= Rhododendron argyrophyllum var. cupulare Rehder & E.H.Wilson; Pl. Wilson. 1(3): 526-527 (1913)
= Rhododendron chionophyllum Diels; Bot. Jahrb. Syst. 29(3-4): 512 (1900)
variant :
var. glabriovarium
M.Y.He; Acta Phytotax. Sin. 35(1): 66, f. 2 (1997)
Distribution: China (Sichuan)
36 CHI
subspecies :
subsp. nankingense
(Cowan) Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 329 (1979)
Distribution: China (S-Sichuan, E-Guizhou)
36 CHI
Synonyms: hidden
= Rhododendron argyrophyllum var. leiandrum Hutch.; Bot. Mag. 144: t. 8767 (1918)
= Rhododendron argyrophyllum var. nankingense Cowan; Notes Roy. Bot. Gard. Edinburgh 21(3): 148 (1953)
subspecies :
subsp. omeiense
(Rehder & E.H.Wilson) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 329 (1979)
Distribution: China (W-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron argyrophyllum var. omeiense Rehder & E.H.Wilson; Pl. Wilson. 1(3): 527 (1913)
species :
Rhododendron arizelum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12(57-58): 90-93 (1920)
Distribution: China (NW-Yunnan); SE-Tibet; India (Arunachal Pradesh); N-Myanmar (Kachin)
36 CHI TIB 40 IND 41 MYA
Synonyms: hidden
= Rhododendron arizelum var. rubicosum Cowan & Davidian; Rhododendron Year book 8: 79 (1953)
= Rhododendron rex subsp. arizelum (Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 330 (1979)
species :
Rhododendron armitii
F.M.Bailey; Dept. Agric. Brisbane Bot. Bull. 10: 39 (1895)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron arunachalense
D.F.Chamb. & Rae; Edinburgh J. Bot. 47(2): 197 (1990)
Distribution: NE-India (Arunachal Pradesh)
40 IND
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron asperrimum
Sleumer; Blumea 12: 97 (1963)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron asperulum
Hutch. & Kingdon-Ward; Hutch. in Notes Bot. Gard. Edinb. 16: 182 (1931), latine
Distribution: China (Yunnan); Tibet; Myanmar (Chin, Kachin, Sagaing)
36 CHI TIB 41 MYA
Synonyms: hidden
= Rhododendron asperulum Kingdon-Ward; Gard. Chron., Ser. 3, 81: 251 (1927)
species :
Rhododendron asperum
J.J.Sm.; Nova Guinea 12: 137 (1914)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron asterochnoum
Diels; Repert. Spec. Nov. Regni Veg. 17(486-491): 196 (1921)
Distribution: China (W-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
variant :
var. brevipedicellatum
W.K.Hu; Bull. Bot. Res., Harbin 8(3): 57, pl. 7 (1988)
Distribution: China (NW-Sichuan)
36 CHI
species :
Rhododendron astrophorum
M.N.Tamayo, Y.P.Ang & A.S.Rob.; Edinburgh J. Bot. 80-1979: 2, f. 1-3, 4A (2023)
Distribution: Palawan
42 PLW
species :
Rhododendron atjehense
Sleumer; Blumea, Suppl. 4, 53 (1958), in clavi, sine descr. lat.; et in Reinwardtiav. 226 (1960)
Distribution: N-Sumatra
42 SUM
Remarks: Subgen. Hymenanthes
species :
Rhododendron atlanticum
(Ashe) Rehder; Wilson & Rehder, Monogr. Azaleas, 147 (1921)
Name: Dwarf azalea
Distribution: USA (District of Columbia, Delaware, Georgia, Maryland, North Carolina, New Jersey, Pennsylvania, South Carolina, Virginia)
75 USA 78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea atlantica Ashe; Bull. Charlest. Mus. xiii. 26 (1917)
= Azalea atlantica var. luteoalba Coker; J. Elisha Mitchell Sci. Soc. 36: 98 (1920)
= Azalea neglecta Ashe; Bull. Torrey Bot. Club 47: 581 (1920)
= Rhododendron atlanticum f. confusum Fernald; Rhodora 43: 622 (1941)
= Rhododendron atlanticum f. luteoalbum (Coker) Fernald; Rhodora 43: 622 (1941)
= Rhododendron atlanticum f. neglectum (Ashe) Rehder; Wils. & Rehd., Monogr. Azaleas 149 (1921)
= Rhododendron atlanticum f. tomolobum Fernald; Rhodora 43: 622 (1941)
= Rhododendron atlanticum var. luteoalbum (Coker) Rehder; Wils. & Rehd., Monogr. Azaleas 150 (1921)
= Rhododendron neglectum (Ashe) Ashe; Rhodora 23: 179 (1921)
species :
Rhododendron atrichum
Argent; J. Amer. Rhododendron Soc. 63(3): 160 (2009), nom. nov.
subspecies :
subsp. atrichum
Distribution: Borneo (Sarawak)
42 BOR
Synonyms: hidden
= Rhododendron epilosum Argent; Rhododendrons Camellias Magnolias 60: 86 (2009), homonym
subspecies :
subsp. dendrolepis
(Argent) Argent; J. Amer. Rhododendron Soc. 63(3): 161 (2009)
Distribution: Borneo (Sarawak)
42 BOR
Synonyms: hidden
= Rhododendron epilosum subsp. dendrolepis Argent; Rhododendrons Camellias Magnolias 60: 86 (2009)
species :
Rhododendron atropunicum
H.P.Yang; Acta Bot. Yunnan. 10(3): 367 (1988)
Distribution: China (SW-Sichuan)
36 CHI
species :
Rhododendron atropurpureum
Sleumer; Reinwardtia 5: 172 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron atrovirens
Franch.; Bull. Soc. Bot. France 33: 235 (1886)
Distribution: China (Sichuan, Yunnan)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Azalea atrovirens (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron augustinii
Hemsl.; J. Linn. Soc. 26: 19 (1890)
subspecies :
subsp. augustinii
Distribution: China (W-Hubei, NE-Sichuan, W-Sichuan, S-Shaanxi)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora
Synonyms: hidden
= Azalea augustinii (Hemsl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron augustinii f. album E.H.Wilson; J. Arnold Arbor. 5: 101 (1924)
= Rhododendron augustinii var. yui W.P.Fang; Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 12: 78 (1939)
= Rhododendron vilmorinianum Balf.f.; Notes Roy. Bot. Gard. Edinburgh 12: 181 (1920)
subspecies :
subsp. chasmanthum
(Diels) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 109 (1978)
Distribution: China (Gansu, Sichuan, Yunnan); ?Tibet
36 CHI
Synonyms: hidden
= Rhododendron augustinii f. grandifolum Franch.; J. Bot. (Morot) 12: 261 (1898)
= Rhododendron augustinii f. hardyi (Davidian) R.C.Fang; Acta Bot. Yunnan. 4(3): 255 (1982)
= Rhododendron augustinii f. rubrum (Davidian) R.C.Fang; Acta Bot. Yunnan. 4(3): 255 (1982)
= Rhododendron augustinii f. subglabrum Franch.; J. Bot. (Morot) 12: 261 (1898)
= Rhododendron augustinii subsp. hardyi (Davidian) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 109 (1978)
= Rhododendron augustinii subsp. rubrum (Davidian) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 109 (1978)
= Rhododendron augustinii var. chasmanthum (Diels) R.C.Fang; Rhododendron Camellia Year Book 17: 164 (1963)
= Rhododendron augustinii var. rubrum Davidian; Rhododendron Camellia Year Book 17: 165 (1963)
= Rhododendron bergii Davidian; Quart. Bull. Amer. Rhododendron Soc. 30(4): 210 (1976)
= Rhododendron chasmanthoides Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 246 (1922)
= Rhododendron chasmanthum Diels; Notes Roy. Bot. Gard. Edinburgh 5: 212 (1912)
= Rhododendron hardyi Davidian; Rhododendrons 1974. Magnolias. Camellias 46 (1974)
= Rhododendron hirsuticostatum Hand.-Mazz.; Anz. Akad. Wiss. Wien 57: 287 (1920)
species :
Rhododendron aureodorsale
(W.P.Fang ex J.Q.Fu) Y.P.Ma & J.Nielsen; Nordic J. Bot. 30(2): 184 (2012)
Distribution: China (S-Shaanxi)
36 CHI
Synonyms: hidden
= Rhododendron clementinae subsp. aureodorsale W.P.Fang; Fl. Tsinling. 1(4): 20, 393 (1983)
species :
Rhododendron aureum
Georgi; Reise Russ. Reich. 1: 51, 214 (1775)
subspecies :
subsp. aureum
Distribution: Siberia (Altai, Buryatia, Chita, Irkutsk, Krasnoyarsk, Tuva, W-Siberia, Yakutia); Russian Far East (Amur, Kamchatka, Khabarovsk, Kuril Isl., Magadan, Primorye, Sakhalin); China (SE-Jilin, Liaoning); Mongolia; North Korea; South Korea; Japan (Hokkaido, Honshu)
30 SIB 31 RFE 36 CHI 37 MON 38 JAP KOR NKO
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Pontica
Synonyms: hidden
= Azalea chrysantha (Pall.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron aureum f. senanense (Yabe) H.Hara; Enum. Spermatophytarum Japon. 1: 28 (1948)
= Rhododendron chrysanthum Pall.; Reise Durch Verschiedne Provinz. 3: 729 (1776)
= Rhododendron flavum Pall.; Reise Russ. Reich. 3: 320 (1776)
= Rhododendron officinale Salisb.; Parad. Lond. t. 80 (1807)
subspecies :
subsp. hypopitys
(Pojark.) Vorosch.; A. K. Skvortsov (ed.), Florist. issl. v razn. raionakh S.S.S.R. 185 (1985)
Distribution: Russian Far East (Khabarovsk, Primorye)
31 RFE
Synonyms: hidden
= Rhododendron aureum var. hypopitys (Pojark.) Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 335 (1979)
= Rhododendron hypopitys Pojark.; Fl. URSS 18: 72 (1952)
species :
Rhododendron auriculatum
Hemsl.; J. Linn. Soc., Bot. 26(173): 20 (1889)
Distribution: China (S-Shaanxi, E-Sichuan, W-Hubei, N-Guizhou)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Auriculata
Synonyms: hidden
= Azalea auriculata (Hemsl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron aurigeranum
Sleumer; Reinwardtia 5: 214 (1960)
subspecies :
subsp. aurigeranum
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
subspecies :
subsp. hirsutum
Argent; Folia Malaysiana 4(2): 120 (2003)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron auritum
Tagg; Rhododendron Soc. Notes, 1929-31 3: No. 5, 278 (1932); et in Notes Bot. Gard. Edinb. 18: 218 (1934), latine
Distribution: SE-Tibet
36 TIB
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Tephropepla
species :
Rhododendron austrinum
(Small) Rehder; L. H. Bailey, Standard Cycl. Hort. 3571 (1917)
Name: Orange azalea
Distribution: USA (Alabama, Florida, Georgia, Mississippi)
78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea austrina Small; Fl. S.E. U.S. [Small] ed. 2, 1356 (1913)
species :
Rhododendron awatosaense
Minamit. & Yonek.; J. Jap. Bot. 93(2): 93 (2018)
Distribution: Japan
38 JAP
variant :
var. miyabiense
Minamit.; J. Jap. Bot. 93(2): 95 (2018)
Distribution: Japan
38 JAP
variant :
var. sizukaobarae
Minamit.; J. Jap. Bot. 93(2): 95 (2018)
Distribution: Japan
38 JAP
species :
Rhododendron bachii
H.Lév.; Repert. Spec. Nov. Regni Veg. 12(312-316): 102-103 (1913)
Distribution: China (Anhui, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Zhejiang)
36 CHI
Remarks: Subgen. Azaleastrum, Sect. Azaleastrum
Synonyms: hidden
= Rhododendron hangzhouense W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 81-82, pl. 1 (1982)
= Rhododendron sanidodeum P.C.Tam; Guihaia 3(3): 182-183, f. 4 (1983)
species :
Rhododendron baconii
Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42(1): 115 (1984)
Distribution: Borneo (Sabah)
42 BOR
species :
Rhododendron baenitzianum
Lauterb.; K. Schum. & Lauterb. Nachtr. Fl. Deutsch. Südsee, 337 (1905)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron maboroense Schltr.; Bot. Jahrb. Syst. 55: 156 (1918)
variant :
var. oktediense
Argent; Rhododendrons subgen. Vireya, ed. 2. 380 (2015)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron bagobonum
H.F.Copel.; Philipp. J. Sci. 40: 136, 151 (1929)
Distribution: Palawan; Philippines (Mindanao, Camiguin)
42 PHI PLW
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron cuneifolium var. subspathulatum Ridl.; J. Straits Branch Roy. Asiat. Soc. 33: 23 (1900)
= Rhododendron galioides J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 3, 13: 445 (1935)
species :
Rhododendron baihuaense
Y.P.Ma; Phytotaxa 114(1): 47 (2013)
Distribution: China (Yunnan)
36 CHI
species :
Rhododendron baileyi
Balf.f.; Notes Roy. Bot. Gard. Edinburgh 11: 23 (1919)
Distribution: S- & SE-Tibet; Bhutan; India (Sikkim)
36 TIB 40 BHU IND
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Baileya
Synonyms: hidden
= Rhododendron thyodocum Balf.f. & Cooper; Notes Roy. Bot. Gard. Edinburgh 11: 118 (1919)
species :
Rhododendron bailiense
Y.P.Ma, C.Q.Zhang & D.F.Chamb.; Phytotaxa 195(2): 197 (2015)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron bainaense
Xiang Chen & C.H.Yang; J. Trop. Subtrop. Bot. 20(5): 513 (2012)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron bainbridgeanum
Tagg & Forrest; Stevenson, Spec. Rhododendron 133 (1930)
Distribution: China (NW-Yunnan); SE-Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Hymenanthes
species :
Rhododendron balangense
W.P.Fang; Acta Phytotax. Sin. 21(4): 468, pl. 2, f. 1 (1983)
Distribution: China (W-Sichuan)
36 CHI
species :
Rhododendron balfourianum
Diels; Notes Roy. Bot. Gard. Edinburgh 5(25): 214 (1912)
Distribution: China (SW-Sichuan, W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
variant :
var. aganniphoides
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 15(75): 306-307 (1927)
Distribution: China (SW-Sichuan, NW-Yunnan)
36 CHI
species :
Rhododendron bamaense
Z.J.Zhao; Fl. Lign. Qinghaica, Add. 4 (1987)
Distribution: China (SE-Qinghai)
36 CHI
species :
Rhododendron banghamiorum
(J.J.Sm.) Sleumer; Reinwardtia 5: 163 (1960)
Distribution: N-Sumatra
42 SUM
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron pubigermen var. banghamiorum J.J.Sm.; Contr. Arnold Arbor. 8: 123 (1934)
species :
Rhododendron barbatum
Wall. ex G.Don; Gen. Hist. 3: 844 (1834)
Distribution: S-Tibet; Nepal; Bhutan; India (Arunachal Pradesh, Sikkim, Uttarakhand, West Bengal)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Barbata
Synonyms: hidden
= Azalea barbata (Wall. ex G.Don) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Rhododendron aristatum Royle; Illustr. Bot. Himal. 42 (1836), nomen
= Rhododendron barbatum f. imberbe (Hutch.) H.Hara; Enum. Fl. Pl. Nepal 3: 57 (1982)
= Rhododendron imberbe Hutch.; Gard. Chron., Ser. 3, 83: 212 (1928)
= Rhododendron lancifolium Hook.f.; Rhododendr. Sikkim-Himalaya 1: t. 4 (1849), nom. illeg.
species :
Rhododendron barkamense
D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 39(2): 363, 478 (1982)
Distribution: China (NW-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron basilicum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 214-215 (1916)
Distribution: China (NW-Yunnan); Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Falconera
Synonyms: hidden
= Rhododendron megaphyllum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12(57-58): 138-140 (1920)
= Rhododendron regale Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 12(57-58): 156-159 (1920)
species :
Rhododendron beanianum
Cowan; New Flora & Silva 10: 246 (1938)
Distribution: SE-Tibet; NE-India (Arunachal Pradesh); NE-Myanmar (Kachin)
36 TIB 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron beccarii
Sleumer; Reinwardtia 5: 192 (1960)
Distribution: Sumatra
42 SUM
Remarks: Subgen. Rhododendron
species :
Rhododendron beesianum
Diels; Notes Roy. Bot. Gard. Edinburgh 5(25): 214-215 (1912)
Distribution: China (SW-Sichuan, NW-Yunnan); SE-Tibet; NE-Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Rhododendron colletum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 39-42 (1919)
= Rhododendron emaculatum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 42 (1920)
species :
Rhododendron bellissimum
D.F.Chamb.; Flora of China 14: 313 (2005) nom. nov.
Distribution: China (C-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron bellum H.P.Yang; Bull. Bot. Res. North-East. Forest. Inst. 9(1): 18 (1989) (not R. bellum W. P. Fang & G. Z. Li 1984)
species :
Rhododendron benhallii
Craven; Blumea 56(1): 34 (2011)
Distribution: Japan (Honshu, Shikoku)
38 JAP
Synonyms: hidden
= Andromeda ciliicalyx Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 30 (1863)
= Menziesia ciliicalyx (Miq.) Maxim.; Mém. Acad. Petersb., Ser. VII. 16: no. 9: 10 (1871)
= Menziesia ciliicalyx var. akiensis Hiyama; J. Jap. Bot. 39(4): 127 (1964)
= Menziesia tubiflora Koidz.; Bot. Mag. (Tokyo) 37: 37 (1923)
species :
Rhododendron benomense
Rafidah & A.C.Elliott; Edinburgh J. Bot. 79-413: 2 (2022), nom. nov.
Distribution: peninsular Malaysia (once from summit of Gunung Benom, Pahang)
42 MLY
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron obscurum Sleumer; Reinwardtia 5: 104 (1960), non Franch. ex Balf. (1922)
species :
Rhododendron beyerinckianum
Koord.; Lorentz, Nova Guinea. 8: 876 (1912)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron beyerinckianum var. longipetiolatum J.J.Sm.; Nova Guinea 18: 94 (1936)
= Rhododendron chrysopeplon Sleumer; Bot. Jahrb. Syst. 74: 540 (1949), in adnot.
= Rhododendron dasylepis Schltr.; Bot. Jahrb. Syst. 55: 153 (1918)
= Rhododendron saavedranum Diels; Bot. Jahrb. Syst. 62: 486 (1929)
= Rhododendron schultzei Schltr.; Bot. Jahrb. Syst. 55: 154 (1918)
species :
Rhododendron bhutanense
D.G.Long & Bowes Lyon; Notes Roy. Bot. Gard. Edinburgh 45(2): 327 (1988 publ. 1989)
Distribution: Bhutan
40 BHU
species :
Rhododendron biappendiculatum
Craven; J. Adelaide Bot. Gard. 27(4): 29 (2014), nom. nov.
Distribution: Sulawesi
42 SUL
Synonyms: hidden
= Rhododendron seranicum subsp. sparsihirtum Argent; Rhododendrons Camellias Magnolias 127 (2013)
species :
Rhododendron bijiangense
T.L.Ming; Acta Bot. Yunnan. 3(1): 116-118, f. 2, 6-8 (1981)
Distribution: China (W-Yunnan)
36 CHI
species :
Rhododendron bivelatum
Balf.f.; Notes Roy. Bot. Gard. Edinburgh 10: 85 (1917)
Distribution: China (NE-Yunnan)
36 CHI
species :
Rhododendron blackii
Sleumer; Blumea 21(2): 375 (1973)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Synonyms: hidden
= Rhododendron sleumeri Gilli; Ann. Naturhist. Mus. Wien 83: 435 (1979 publ. 1980)
species :
Rhododendron bloembergenii
Sleumer; Reinwardtia 5: 204 (1960)
Distribution: Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron rhodopus Sleumer; Reinwardtia 5: 199 (1960)
species :
Rhododendron boninense
Nakai; Bot. Mag. (Tokyo) 34: 324 (1920)
Distribution: Bonin Isl. (Chichijima)
38 OGA
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron bonvalotii
Franch.; J. Bot. [Morot] 5: 94 (1891)
Distribution: China (SW-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
species :
Rhododendron boothii
Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 356 (1853)
Distribution: SE-Tibet; NE-India (Arunachal Pfädesh)
36 TIB 40 IND
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Boothia
Synonyms: hidden
= Azalea boothii (Nutt.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron mishmiense Hutch. & Kingdon-Ward; Spec. Rhododendron, 166 (1930), et Notes Bot. Gard. Edinb. 16: 173 (1931), latine
species :
Rhododendron borneense
(J.J.Sm.) Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42(1): 118 (1984)
subspecies :
subsp. borneense
Distribution: Borneo
42 BOR
Synonyms: hidden
= Rhododendron quadrasianum var. borneense J.J.Sm.; Bull. Jard. Bot. Buitenzorg, sér. 3, 13: 444 (1935)
subspecies :
subsp. angustissimum
(Sleumer) Argent; Edinburgh J. Bot. 52(3): 363 (1995)
Distribution: Borneo
42 BOR
Synonyms: hidden
= Rhododendron quadrasianum var. angustissimum Sleumer; Blumea 12: 92 (1963)
= Rhododendron quadrasianum subsp. angustissimum (Sleumer) Argent; Bot. J. Linn. Soc. 85(1): 16 (1982)
subspecies :
subsp. villosum
(J.J.Sm.) Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42(1): 118 (1984)
Distribution: Borneo
42 BOR
Synonyms: hidden
= Rhododendron quadrasianum var. villosum J.J.Sm.; Bull. Jard. Bot. Buitenzorg, sér. 3, 13: 444 (1935)
species :
Rhododendron brachyantherum
Warb. ex P.Sarasin & Sarasin; Reis. Celebes 2: 329 (1905)
Distribution: Sulawesi
42 SUL
species :
Rhododendron brachyanthum
Franch.; Bull. Soc. Bot. Fr. 33: 234 (1886)
subspecies :
subsp. brachyanthum
Distribution: China (C-Yunnan, W-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Glauca
Synonyms: hidden
= Azalea brachyantha (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
subspecies :
subsp. hypolepidotum
(Balf.f. & Forrest) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 114 (1978)
Distribution: China (NW-Yunnan, W-Yunnan, C-Yunnan); SE-Tibet; NE-Myanmar (Kachin)
36 CHI TIB 41 MYA
Synonyms: hidden
= Rhododendron brachyanthum var. hypolepidotum Franch.; J. Bot. (Morot) 12: 262 (1898)
= Rhododendron hypolepidotum (Franch.) Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 266 (1922)
species :
Rhododendron brachycarpum
D.Don ex G.Don; Gen. Hist. 3: 843 (1834)
subspecies :
subsp. brachycarpum
Distribution: Russian Far East (Kuril Isl.); North Korea; South Korea; Japan (Hokkaido, Honshu, Shikoku)
31 RFE 38 JAP KOR NKO
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Pontica
Synonyms: hidden
= Azalea brachycarpa (D.Don ex G.Don) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron brachycarpum f. nemotoanum (Makino) H.Hara; Enum. Spermatophytarum Japon. 1: 31 (1948)
= Rhododendron brachycarpum subsp. tigerstedtii Nitz. ex D.H.Voss; J. Amer. Rhododendron Soc. 55: 157 (2001)
= Rhododendron brachycarpum var. roseum Koidz.; Bot. Mag. (Tokyo) 30: 77 (1916)
= Rhododendron brachycarpum var. rosiflorum Miyoshi; J. Coll. Sci. Imp. Univ. Tokyo 27(11): 8 (1910)
= Rhododendron brachycarpum var. rufescens Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 56 (1927)
= Rhododendron brachycarpum var. tigerstedtii (Nitz.) Davidian; Rhododendron Species, 3 (Ser. Neriiflorum-Thomsonii, etc.): 157 (1992)
= Rhododendron fauriei var. roseum (Koidz.); Trees Shrubs Japan 1: 48 (1922)
= Rhododendron fauriei var. rufescens Nakai; Trees Shrubs Japan, Revis. Ed. 1: 56 (1927)
subspecies :
subsp. fauriei
(Franch.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 335 (1979)
Distribution: Russian Far East (Primorye); Japan
31 RFE 38 JAP
Synonyms: hidden
= Rhododendron brachycarpum f. fauriei (Franch.) Murata; Acta Phytotax. Geobot. 38: 56 (1987)
= Rhododendron brachycarpum var. lutescens Koidz.; Bot. Mag. (Tokyo) 30: 77 (1916)
= Rhododendron fauriei Franch.; Bull. Annuel Soc. Philom. Paris, sér. 7, 10: 145 (1886)
species :
Rhododendron brachygynum
H.F.Copel.; Philipp. J. Sci. 40: 137, 165 (1929)
Distribution: Philippines (Cebu)
42 PHI
Remarks: Subgen. Rhododendron
species :
Rhododendron brachypodarium
Sleumer; Blumea 12: 103 (1963)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron brachypodum
W.P.Fang & P.S.Liu; Bull. Bot. Res. North-East. Forest. Inst. 2(2): 92 (1982)
Distribution: China (Sichuan)
36 CHI
species :
Rhododendron bracteatum
Rehder & E.H.Wilson; Sarg., Pl. Wilson. 1: 519 (1913)
Distribution: China (NW-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Heliolepida
species :
Rhododendron brassii
Sleumer; Reinwardtia 5: 170 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron brentelii
Argent; Rhododendrons subgen. Vireya, ed. 2. 258 (2015)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron brevicaudatum
R.C.Fang & S.S.Chang; Acta Bot. Yunnan. 10(3): 369 (1988)
Distribution: China (E-Guizhou)
36 CHI
species :
Rhododendron brevinerve
Chun & W.P.Fang; Acta Phytotax. Sin. 6(2): 167-168, pl. 39, f. 2 (1957)
Distribution: China (N-Guangdong, N-Guangxi, SW-Hunan, SE-Guizhou)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
species :
Rhododendron breviperulatum
Hayata; Icon. Pl. Formosan. 3: 129-130 (1913)
Distribution: Taiwan
38 TAI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron rubropilosum var. breviperulatum (Hayata) T.Yamaz.; Rev. Gen. Rhododendron Japan, Taiwan, Korea & Sakhalin 35 (1996)
species :
Rhododendron brevipes
Sleumer; Reinwardtia 5: 213 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron brevipetiolatum
M.Y.Fang; Acta Phytotax. Sin. 22(5): 420-421, f. 1 (1984)
Distribution: China (W-Sichuan)
36 CHI
species :
Rhododendron bryophilum
Sleumer; Reinwardtia 5: 79 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron bullifolium
Sleumer; Blumea 12: 93 (1963)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron bulu
Hutch.; Rhododendron Soc. Notes, 1929-31 3: No. 5, 280 (1932)
Distribution: S-Tibet; ?NE-India
36 TIB
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
species :
Rhododendron bureavii
Franch.; Bull. Soc. Bot. France 34: 281-282 (1887)
Distribution: China (NE-Sichuan, SW-Sichuan, N-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Azalea bureavii (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron bureavioides Balf.f.; Notes Roy. Bot. Gard. Edinburgh 13(61): 33 (1920)
= Rhododendron cruentum H.Lév.; Repert. Spec. Nov. Regni Veg. 12(325-330): 284 (1913)
species :
Rhododendron burmanicum
Hutch.; Bull. Misc. Inform. Kew 1914: 185 (1914)
Distribution: Myanmar (Chin, Kachin)
41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron burttii
P.Woods; Notes Roy. Bot. Gard. Edinburgh 37(1): 157 (1978)
Distribution: Borneo (Sarawak)
42 BOR
species :
Rhododendron buruense
J.J.Sm.; Repert. Spec. Nov. Regni Veg. 30: 168 (1932)
Distribution: Moluccas (Buru Isl.)
42 MOL
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron lompohense var. grandifolium J.J.Sm.; Repert. Spec. Nov. Regni Veg. 30: 169 (1932)
species :
Rhododendron buxifolium
H.Low ex Hook.f.; Hooker´s Icon. Pl., t. 890 (1852)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron buxifolium var. robustum Sleumer; Reinwardtia 5: 173 (1960)
species :
Rhododendron buxoides
Sleumer; Blumea 21(2): 359 (1973)
Distribution: Borneo (Sarawak)
42 BOR
species :
Rhododendron caesium
Hutch.; Gard. Chron. Ser. 3, 94: 102 (1933)
Distribution: China (Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Trichoclada
species :
Rhododendron caespitosum
Sleumer; Reinwardtia 5: 137 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron calendulaceum
(Michx.) Torr.; Fl. N. Middle U. St. 1: 425 (1824)
Name: Flame azalea
Distribution: USA (Alabama, Connecticut, Georgia, Kentucky, Maryland, North Carolina, New York, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia)
75 USA 78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea aurantiaca F.Dietr.; Darst. Vorz. Zierpfl. Hefl. 1: 5 (1803)
= Azalea calendulacea Michx.; Fl. Bor. Amer. 1: 151 (1803)
= Azalea calendulacea var. crocea Michx.; Fl. Bor.-Amer. 1: 151 (1803)
= Azalea coccinea aurantia Lodd.; Bot. Cab. 13: t. 1255 (1827)
= Azalea crocea (Michx.) Hoffmanns.; Verz. Pfl.-Kult., Nachtr. 3: 22 (1828)
= Azalea jammea Pritz.; Icon. Bot. Index [Pritz.] 131 (1854)
= Azalea nudiflora var. aurantiaca (F.Dietr.) Dum.Cours.; Bot. Cult., ed. 2, 3: 333 (1811)
= Azalea nudiflora var. coccinea-major Dum.Cours.; Bot. Cult., ed. 2, 3: 333 (1811)
= Azalea nudiflora var. hirta Elliott; Sketch Bot. S. Carolina 1: 241 (1817)
= Azalea pontica var. calendulacea (Michx.) Pers.; Syn. Pl. [Persoon] 1: 212 (1805)
= Azalea speciosa var. aurantia (Lodd.) DC.; Prodr. [A. P. de Candolle] 7: 717 (1839)
= Azalea speciosa var. aurantiaca (F.Dietr.) G.Kirchn.; Petzold & Kirchner, Arbor. Muscav. 479 (1864)
= Rhododendron calendulaceum f. aurantiacum (F.Dietr.) Zabel; Beissn. et al., Handb. Laubholzben. [Beissner et al.] 380 (1903)
= Rhododendron calendulaceum f. aurantium (Lodd.) Rehder; Wils. & Rehd., Monogr. Azaleas 130 (1921)
= Rhododendron calendulaceum f. croceum (Michx.) Rehder; Mitt. Deutsch. Dendrol. Ges. 24: 225 (1915 publ. 1916)
= Rhododendron calendulaceum var. croceum (Michx.) Sweet; Hort. Brit., ed. 2: 343 (1830)
= Rhododendron luteum C.K.Schneid.; Ill. Handb. Laubholzk. 2: 500 (1911), nom. illeg.
= Rhododendron luteum var. croceum (Michx.) C.K.Schneid.; Ill. Handb. Laubholzk. 2: 500 (1911)
= Rhododendron speciosum var. aurantium (Lodd.) Sweet; Hort. Brit., ed. 2: 343 (1830)
species :
Rhododendron caliginis
Kores; Blumea 30(1): 45 (1984)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
species :
Rhododendron callimorphum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 89-90 (1917)
Distribution: China (Yunnan); India (Arunachal Pradesh); Myanmar (Kachin)
36 CHI 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Campylocarpa
Synonyms: hidden
= Rhododendron cyclium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 39-40 (1920)
= Rhododendron hedythamnum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 261-262 (1922)
variant :
var. myiagrum
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 116 (1978)
Distribution: China (NW-Yunnan); NE-Myanmar
36 CHI 41 MYA
Synonyms: hidden
= Rhododendron myiagrum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 52-53 (1920)
species :
Rhododendron calophytum
Franch.; Bull. Soc. Bot. Fr. 33: 250 (1886); et in Nouv. Arch. Mus. Paris, Ser. 2, 10: 45 (1887 publ. 1888)
Distribution: China (S-Shaanxi, SE-Gansu, W-Hubei, SE-Sichuan, W-Sichuan, N-Sichuan, C-Guizhou, N-Guizhou, N-Yunnan, E-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
variant :
var. jinfuense
W.P.Fang & W.K.Hu; Bull. Bot. Res., Harbin 8(3): 56 (1988)
Distribution: China (Chongqing)
36 CHI
Synonyms: hidden
= Rhododendron calophytum subsp. jinfuense M.Y.Fang; Acta Phytotax. Sin. 26: 68 (1988)
variant :
var. openshawianum
(Rehder & E.H.Wilson) Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 330 (1979)
Distribution: China (SW-Sichuan, NE-Yunnan)
36 CHI
Synonyms: hidden
= Rhododendron openshawianum Rehder & E.H.Wilson; Pl. Wilson. 1: 543 (1913)
variant :
var. pauciflorum
W.K.Hu; Acta Phytotax. Sin. 26(4): 304, f. 4 (1988)
Distribution: China (Chongqing)
36 CHI
species :
Rhododendron calosanthes
Sleumer; Blumea 11: 125 (1961)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron calostrotum
Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 13: 35 (1920)
Distribution: China (Yunnan); Tibet; NE-India (Arunachal Pradesh); Myanmar (Kachin, Chin, Sagaing)
36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Saluenensia
Synonyms: hidden
= Rhododendron calostrotum subsp. riparium (Kingdon-Ward) Cullen; Notes Roy. Bot. Gard. Edinburgh 36: 112 (1978)
= Rhododendron kingdonii Merr.; Sunyatsenia 3: 256 (1937)
= Rhododendron nitens Hutch.; Gard. Chron., Ser. 3, 99: 10 (1936)
= Rhododendron riparium Kingdon-Ward; Spec. Rhododendron, 598 (1930)
= Rhododendron rivulare Kingdon-Ward; Gard. Chron., Ser. 3, 86: 503 (1929) (not Hand.-Mazz. (1921)
variant :
var. calciphilum
(Hutch. & Kingdon-Ward) Davidian; Rhodod. and Cam. Year Book 8: 87. (1954)
Distribution: China (NW-Yunnan); SE-Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Synonyms: hidden
= Rhododendron calciphilum Hutch. & Kingdon-Ward; Spec. Rhododendron, 589 (1930), et Notes Bot. Gard. Edinb. 16: 179 (1931), latine
species :
Rhododendron calvescens
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 29-31 (1919)
Distribution: China (NW-Yunnan); Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Selensia
variant :
var. duseimatum
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 119 (1978)
Distribution: SE-Tibet
36 TIB
Synonyms: hidden
= Rhododendron duseimatum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 41-42 (1920)
= Rhododendron selense subsp. duseimatum (Balf.f. & Forrest) Tagg; Spec. Rhododendron 722 (1930)
= Rhododendron selense var. duseimatum (Balf.f. & Forrest) Cowan & Davidian; Rhododendron Year Book 6: 152 (1952)
species :
Rhododendron camelliiflorum
Hook.f.; Rhod. Sikkim. Himal. t. 28 (1849)
Distribution: S-Tibet; Nepal; Bhutan; India (Arunachal Pradesh, Sikkim)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Camelliiflora
Synonyms: hidden
= Azalea camelliiflora (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Azalea lucida (Nutt.) Meerb.; Pl. Select. Icon. Pict. 7 (1798)
= Rhododendron cooperi Balf.f.; Notes Roy. Bot. Gard. Edinburgh 10: 91 (1917)
= Rhododendron lucidum Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 363 (1853)
= Rhododendron sparsiflorum Nutt; Hooker´s J. Bot. Kew Gard. Misc. 5: 363 (1853)
species :
Rhododendron campanulatum
D.Don; Mem. Wern. Nat. Hist. Soc. 3: 410 (1821)
Distribution: S-Tibet; Pakistan (Sind); Nepal; Bhutan; N-India (Arunachal Pradesh, Himachal Pradesh, Jammu & Kashmir, Sikkim, Uttarakhand, West Bengal, Chumbi); Myanmar (Kachin)
36 TIB 40 BHU IND NEP PAK 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Campanulata
Synonyms: hidden
= Azalea campanulata (D.Don) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron batemanii Hook.f.; Bot. Mag. 89: t. 5387 (1863)
= Rhododendron campanulatum var. album-violaceum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. alexandria Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. amabile Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. leopoldii Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. lilacinum Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. mirendum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. purpureum-maculatum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. rubrum-grandiflorum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. superbum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. violaceum Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. violaceum-pallidum Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron campanulatum var. wallichii (Hook.f.) Hook.; Bot. Mag. 82: t. 4928 (1856)
= Rhododendron edgarii Gamble; Darjeeling List Trees, 52 (1878)
= Rhododendron heftii Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 307, 149 (1989)
= Rhododendron mutabile Webb ex Royle; Illustr. Bot. Himal. 259 (1836)
= Rhododendron nobile Wall.; Numer. List [Wallich] no. 1521 (1830)
= Rhododendron planifolium Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 365 (1853)
= Rhododendron wallichii Hook.f.; Rhododendron Sikkim Himalaya 4, t. 5 (1849)
species :
Rhododendron campylocarpum
Hook.f.; Rhododendron Sikkim Himalaya t. 33 (1851)
subspecies :
subsp. campylocarpum
Distribution: Tibet; Nepal; Bhutan; N-India (Arunachal Pradesh, Sikkim)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Campylocarpa
Synonyms: hidden
= Azalea campylocarpa (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
subspecies :
subsp. caloxanthum
(Balf.f. & Forrest) Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 116 (1978)
Distribution: China (NW-Yunnan); E-Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Synonyms: hidden
= Rhododendron caloxanthum Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13(65): 238-239 (1922)
= Rhododendron campylocarpum subsp. telopeum (Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 116 (1978)
= Rhododendron campylocarpum var. orbiculare Demoly; Bull. Ass. Parcs Bot. France 13: 10 (1990) (nom. nov. superfl.)
= Rhododendron telopeum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 61 (1920)
species :
Rhododendron campylogynum
Franch.; Bull. Soc. Bot. Fr. 32: 10 (1885)
Distribution: China (Yunnan); S-Tibet; India (Arunachal Pradesh); NE-Myanmar (Kachin)
36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Campylogyna
Synonyms: hidden
= Azalea campylogyna (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron amphichlorum Ingram; Rhododendron Camellia Year Book 23: 49 (1968)
= Rhododendron caeruleoglaucum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 34 (1920)
= Rhododendron campylogynum var. celsum Davidian; Rhododendron Year Book 8: 83 (1954)
= Rhododendron campylogynum var. charopoeum (Balf.f. & Farrer) Davidian; Rhododendron Camellia Year Book 8: 83 (1954)
= Rhododendron campylogynum var. eupodum Ingram; Rhododendron Camellia Year Book 23: 50 (1968)
= Rhododendron campylogynum var. leucanthum Ingram; Rhododendron Camellia Year Book 23: 49 (1968)
= Rhododendron campylogynum var. myrtilloides (Balf.f. & Kingdon-Ward) Davidian; Rhododendron Year Book 8: 84 (1954)
= Rhododendron charopoeum Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 245 (1922)
= Rhododendron cremastum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 39 (1920)
= Rhododendron damascenum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 254 (1922)
= Rhododendron glaucoaureum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 46 (1920)
= Rhododendron myrtilloides Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 13: 276 (1922)
species :
Rhododendron camtschaticum
Pall.; Fl. Ross. [Pallas] 1: 48. t. 33 (1789)
Name: Kamchatka rhododendron
Distribution: Russian Far East (Kamchatka, Khabarovsk, Kuril Isl., Magadan, Sakhalin); Japan (Hokkaido, Honshu); Alaska; Aleutes
31 RFE 38 JAP 70 ASK
Synonyms: hidden
= Azalea camtschatica (Pall.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Chamaecistus camtschaticus (Pall.) Regel; Gartenflora 23: 60 (1874)
= Rhodothamnus camtschaticus (Pall.) Peterm.; Pflanzenreich 551 (1841)
= Therorhodion camtschaticum (Pall.) Small; Britton et al. (eds.), N. Amer. Fl. 29: 45 (1914)
= Therorhodion camtschaticum f. albiflorum Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 42 (1927)
species :
Rhododendron canadense
(L.) Torr.; Rep. Bot. Dep. Surv. New York, no. 50, Assembly 151 (1841)
Name: Rhodora
Distribution: Canada (Labrador, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Isl., Québec); St. Pierre et Miquelon; USA (Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont)
72 CDN SPM 75 USA
Remarks: Subgen. Pentanthera, Sect. Rhodora
Synonyms: hidden
= Azalea canadense (L.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Hochenwartia canadensis (L.) Crantz; Inst. 2: 469 (1766)
= Rhododendron canadense (L.) Britton, Sterns & Poggenb.; Prelim. Catal. (1888) 32
= Rhododendron canadense f. albiflorum (E.L.Rand & Redfield) Rehder; Wils. & Rehd., Monogr. Azaleas 122 (1921)
= Rhododendron canadense f. album Voss; Vilm. Blumengärtn. ed. 3. 1: 587 (1894)
= Rhododendron canadense f. viridifolium Rehder; Wils. & Rehd., Monogr. Azaleas 122 (1921)
= Rhododendron pulchellum Salisb.; Prodr. Stirp. Chap. Allerton 287 (1796), nom. superfl.
= Rhododendron rhodora f. albiflorum E.L.Rand & Redfield; Fl. Mt. Desert Isl. 127 (1894)
= Rhododendron rhodora J.F.Gmel.; Syst. Nat., ed. 13[bis] 694 (1791), nom. superfl.
= Rhodora canadensis L.; Sp. Pl., ed. 2, 561 (1763)
= Rhodora congesta Moench; Meth. 68 (1794)
species :
Rhododendron canescens
(Michx.) G.Don; Gen. Hist. 3: 848 (1834)
Name: Mountain azalea
Distribution: USA (Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas)
74 USA 75 USA 77 USA 78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea bicolor (Aiton) Pursh; Fl. Amer. Sept. 1: 153 (1813)
= Azalea candida Small; Bull. Torrey Bot. Club 360 (1901)
= Azalea canescens Michx.; Fl. Bor. Amer. 1: 150 (1803)
= Azalea canescens var. candida (Small) Ashe; J. Elisha Mitchell Sci. Soc. 38: 91 (1922)
= Azalea nudiflora var. bicolor Aiton; Hort. Kew. 1: 203 (1789)
= Azalea nudiflora var. canescens (Michx.) Rehder; Bailey, Cycl. Amer. Hort. 1: 121 (1900)
= Rhododendron bicolor (Aiton) Sweet; Hort. Brit., ed. 2: 344 (1830)
= Rhododendron candidum (Small) Rehder; L. H. Bailey, Standard Cycl. Hort. 2945 (1916)
= Rhododendron canescens f. subglabrum Rehder; Wils. & Rehd., Monogr. Azaleas 145 (1921)
= Rhododendron canescens var. candidum (Small) Rehder; Monogr. Azaleas [E. H. Wilson & A. Rehder] 146 (1921)
species :
Rhododendron capellae
Kores; Blumea 24(1): 181 (1978)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron capitatum
Maxim.; Bull. Acad. Petersb. 23: 351 (1877)
Distribution: China (Gansu, Qinghai, Shaanxi, NW-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Azalea capitata (Maxim.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron carneum
Hutch.; Bot. Mag. t. 8634 (1915)
Distribution: China (NW-Yunnan); Myanmar (Kachin); Vietnam
36 CHI 41 MYA VIE
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron carrii
Sleumer; Reinwardtia 5: 124 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron carringtoniae
F.Muell.; Vict. Naturalist 4: 110 (1887); et in Bot. Centralbl. 33: 55 (1888)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron carstensense
Wernham; Trans. Linn. Soc. London, Bot. 9: 96 (1916)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron catacosmum
Balf.f. ex Tagg; Notes Roy. Bot. Gard. Edinburgh 15: 307 (1926)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron catawbiense
Michx.; Fl. Bor. Amer. 1: 258 (1803)
Name: Catawba rosebay (EN)
Distribution: Germany [I]; Slovakia [I]; USA (Alabama, Georgia, Kentucky, Massachusetts, North Carolina, South Carolina, Tennessee, Virginia, West Virginia)
11 ger slo 75 USA 78 USA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Pontica
Synonyms: hidden
= Azalea catawbiensis (Michx.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Hymenanthes catawbiensis (Michx.) H.F.Copel.; Amer. Midl. Naturalist 30: 614 (1943)
= Rhododendron catawbiense f. album (P.Glass) Rehder; Bibliogr. Cult. Trees 504 (1949)
= Rhododendron catawbiense f. compactum Kelsey ex Nearing; Arbor. Bull., Washington 8(4): 3 (1945 publ. 1946)
= Rhododendron catawbiense f. insularis Coker; J. Elisha Mitchell Sci. Soc. 35: 81 (1919)
= Rhododendron catawbiense f. tomopetalum Rehder; J. Arnold Arbor. 20: 424 (1939)
= Rhododendron catawbiense var. album P.Glass; Natl. Hort. Mag. 16: 253 (1937)
species :
Rhododendron caucasicum
Pall.; Fl. Ross. [Pallas] 1: 46, t. 31 (1789)
Distribution: Northern Caucasus; Georgia [Caucasus]; Armenia; Azerbaijan; NE-Turkey
33 ARM AZE GEO NCS 34 TUR
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Pontica
Synonyms: hidden
= Azalea caucasica (Pall.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron caucasicum f. flavidum (Regel) Rehder; Bibliogr. Cult. Trees 506 (1949)
= Rhododendron caucasicum f. stramineum (Hook.) Rehder; Bibliogr. Cult. Trees 506 (1949)
= Rhododendron caucasicum var. albicans Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. alboroseum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. album-amoenum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. album-egregium Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. album-lilacinum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. album-mutabile Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. atrorubens Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. bicolor Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. delicatum-novum Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. flavescens Verschaff. ex Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. flavidum Regel; Gartenflora 16: 322 (1867)
= Rhododendron caucasicum var. grandiceps Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. nobile Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. roseum-delicatissimum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. roseum-maculatiflorum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. roseum-purpurascens Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. roseum-tigrinum Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. roseum-variabile Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
= Rhododendron caucasicum var. stramineum Hook.; Bot. Mag. 62: t. 3422 (1835)
= Rhododendron caucasicum var. triumphans Van Geert; Nursery Cat. (Auguste Van Geert) 1854: 26 (1854)
species :
Rhododendron cavaleriei
H.Lév.; Bull. Soc. Agric. Sarthe 31: 48 (1903)
Distribution: China (Fujian, Guangdong, Guangxi, W-Guizhou, Hainan, Jiangxi); N-Vietnam
36 CHI 41 VIE
Remarks: Subgen. Azaleastrum, Sect. Choniastrum
Synonyms: hidden
= Rhododendron dentampullum Chun ex P.C.Tam; Surv. Genus Rhododendron S. China 113, 80 (1983)
= Rhododendron henryi var. pubescens K.M.Feng & A.L.Chang; Acta Bot. Yunnan. 4(3): 257 (1982)
species :
Rhododendron celebicum
(Blume) DC.; Prod. 7: 725 (1839)
Distribution: Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Azalea celebica Blume ex DC.; Prodr. [A. P. de Candolle] 8: 725 (1844), nom. inval.
= Rhododendron discolor Warb. ex Sarasin; Reis. Celebes 1: 28 (1905), nom. illeg.
= Rhododendron tubulosum Reinw.; Reis Oost. Ged. Ind. Archip. 576 (1858)
= Vireya celebica Blume; Bijdr. Fl. Ned. Ind. 855 (1826)
species :
Rhododendron cephalanthum
Franch.; Bull. Soc. Bot. Fr. 32: 9 (1885)
Distribution: China (S-Qinghai, NW-Sichuan, Yunnan); S-Tibet; NE-India (Arunachal Pradesh); Myanmar (Chin, Kachin, Sagaing)
36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
Synonyms: hidden
= Azalea cephalantha (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron cephalanthum var. crebreflorum (Hutch. & Kingdon-Ward) Cowan & Davidian; Rhodod. Yearbook 2: 70 (19479
= Rhododendron chamaetortum Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 9: 218 (1916)
= Rhododendron crebreflorum Hutch. & Kingdon-Ward; Spec. Rhododendron, 206 (1930), et Notes Bot. Gard. Edinb. 16: 173 (1931), latine
= Rhododendron nwaiense Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9: 252 (1916)
species :
Rhododendron cerasinum
Tagg; Notes Roy. Bot. Gard. Edinburgh 16(79): 188-189 (1931)
Distribution: SE-Tibet; India (Arunachal Pradesh:); N-Myanmar (Kachin)
36 TIB 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
Synonyms: hidden
= Rhododendron cerasiflorum Kingdon-Ward; Gard. Chron., Ser. 3, 93: 277 (1933), nom. nud.
species :
Rhododendron cernuum
Sleumer; Reinwardtia 5: 111 (1960)
Distribution: S-Sumatra
42 SUM
Remarks: Subgen. Rhododendron
species :
Rhododendron chamaethomsonii
(Tagg & Forrest) Cowan & Davidian; Rhododendron Year Book 6: 70 (1951)
Distribution: China (NW-Yunnan); SE-Tibet; India (Arunachal Pradesh)
36 CHI TIB 40 IND
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
Synonyms: hidden
= Rhododendron repens var. chamaethomsonii Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16(79): 206-207 (1931)
variant :
var. chamaedoron
(Tagg & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 332 (1979)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron repens var. chamaedoron Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16(79): 206 (1931)
variant :
var. chamaethauma
(Tagg) Cowan & Davidian; Rhododendron Year Book 6: 71 (1951)
Distribution: China (NW-Yunnan); SE-Tibet; India (Arunachal Pradesh)
36 CHI TIB 40 IND
Synonyms: hidden
= Rhododendron repens var. chamaethauma Tagg; Notes Roy. Bot. Gard. Edinburgh 16(79): 206 (1931)
species :
Rhododendron chamahense
Rafidah; Blumea 57(2): 114 (2012)
Distribution: peninsular Malaysia
42 MLY
species :
Rhododendron chamberlainii
Craven; Blumea 56(1): 34 (2011), nom. nov.
Distribution: China (NW-Yunnan); SE-Tibet; Nepal; Bhutan; N-India (Arunachal Pradesh, Sikkim, Chumbi); Myanmar (Kachin)
36 CHI TIB 40 BHU IND NEP 41 MYA
Synonyms: hidden
= Diplarche multiflora Hook.f. & Thomson; Hooker´s J. Bot. Kew Gard. Misc. 6: 383 (1854)
species :
Rhododendron championiae
Hook.; Bot. Mag. 77: t. 4609 (1851)
Distribution: China (Fujian, Guangdong, Guangxi, Hunan, Jiangxi, Zhejiang)
36 CHI
Remarks: Subgen. Azaleastrum, Sect. Choniastrum
Synonyms: hidden
= Azalea championiae (Hook.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron championiae var. ovalifolium P.C.Tam; Survey Genus Rhododendron S. China 73, 112 (1983)
= Rhododendron subespitatum Chun ex P.C.Tam; Bull. Bot. Res., Harbin 2(4): 90-91, f. 3 (1982)
species :
Rhododendron changii
(W.P.Fang) W.P.Fang; Acta Phytotax. Sin. 21(4): 465 (1983)
Distribution: China (Chongqing)
36 CHI
Synonyms: hidden
= Rhododendron valentianum var. changii W.P.Fang; Contr. Biol. Lab. Chin. Assoc. Advancem. Sci., Sect. Bot. 12: 71 (1939)
species :
Rhododendron chaoanense
T.C.Wu & P.C.Tam; Med. Mat. Guangdong 4: 35 (1978)
Distribution: China (Guangdong)
36 CHI
species :
Rhododendron charitopes
Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 243 (1922)
subspecies :
subsp. charitopes
Distribution: China (NW-Yunnan); NE-Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Glauca
subspecies :
subsp. tsangpoense
(Ward) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 114 (1978)
Distribution: S-Tibet
36 TIB
Synonyms: hidden
= Rhododendron tsangpoense Kingdon-Ward; Gard. Chron., Ser. 3, 86: 504 (1929)
= Rhododendron tsangpoense var. curvistylum Kingdon-Ward ex Cowan & Davidian; Rhododendron Year Book 3: 90 (1948)
species :
Rhododendron charitostreptum
Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 13: 244 (1922)
Distribution: Myanmar (Kachin)
41 MYA
species :
Rhododendron chevalieri
Dop ex A.Chev.; Rev. Bot. Appliq. 9: 256 (1929)
Distribution: Laos; C-Vietnam
41 LAO VIE
Remarks: Subgen. Rhododendron
species :
Rhododendron chihsinianum
Chun & W.P.Fang; Acta Phytotax. Sin. 6(2): 168-169, pl. 40, f. 1 (1957)
Distribution: China (N-Guangxi)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Auriculata
species :
Rhododendron chilanshanense
Kurash.; Edinburgh J Bot. 56(1): 75 (1999)
Distribution: Taiwan
38 TAI
species :
Rhododendron chiliangense
S.S.Ying; New Taxa New Names 5: 217 (2022)
Distribution: Taiwan
38 TAI
Remarks: provisionally accepted name
species :
Rhododendron chionanthum
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 15(75): 309 (1927)
Distribution: China (W-Yunnan); NE-Myanmar
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron christi
F.Först.; Repert. Spec. Nov. Regni Veg. 13: 222 (1914)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron, Sect. Vireya
Synonyms: hidden
= Rhododendron christi var. loniceroides Schltr.; Bot. Jahrb. Syst. 55: 155 (1917)
species :
Rhododendron christianiae
Sleumer; Reinwardtia 5: 211 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron chrysocalyx
H.Lév. & Vaniot; Repert. Spec. Nov. Regni Veg. 2(21): 113 (1906)
Distribution: China (S-Guizhou, W-Hubei, N-Guangxi)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron kouytchense H.Lév.; Fl. Kouy-Tcheou 152 (1914)
= Rhododendron spinigerum H.Lév.; Bull. Acad. Int. Geogr. Bot. 24(295-297): 251 (1914)
variant :
var. xiushanense
(W.P.Fang) M.Y.He; Fl. Reipubl. Popularis Sin. 57(2): 407 (1994)
Distribution: China (S-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron xiushanense W.P.Fang; Acta Phytotax. Sin. 21(4): 461-462, f. 6 (1983)
species :
Rhododendron chrysodoron
Tagg ex Hutch.; Gard. Chron., Ser. 3, 95: 276 (1934)
Distribution: China (NW-Yunnan); SE-Tibet; NE-Myanmar
36 CHI TIB 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Boothia
Synonyms: hidden
= Rhododendron chrysodorum W.W.Sm. ex Stair; Rhododendron Soc. Notes, 1929-31 3: No. 5, 307 (1932)
species :
Rhododendron chrysolepis
Hutch. & Kingdon-Ward; Spec. Rhododendron, 161 (1930), et Notes Bot. Gard. Edinb. 16: 172 (1931), latine
Distribution: Myanmar (Chin, Kachin, Sagaing)
41 MYA
species :
Rhododendron chunienii
Chun & W.P.Fang; Acta Phytotax. Sin. 6: 169 (1957)
Distribution: China (NE-Guangxi, Hunan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron chunii
W.P.Fang; Sunyatsenia 7(1-2): 1-2 (1948)
subspecies :
subsp. chunii
Distribution: China (N-Guangdong)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
subspecies :
subsp. vietnamense
R.A.Baines & D.F.Chamb.; Edinburgh J. Bot. 78-363: 4 (2021)
Distribution: Vietnam
41 VIE
species :
Rhododendron ciliatum
Hook.f.; Rhod. Sikkim-Himal. t. 24 (1851)
Distribution: S-Tibet; W-Nepal; Bhutan; N-India (Sikkim)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
Synonyms: hidden
= Azalea ciliata (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron ciliicalyx
Franch.; Bull. Soc. Bot. Fr. 33: 233 (1886)
Distribution: China (Guizhou, Yunnan); ?NE-India (?Arunachal Pradesh); Myanmar; Thailand; Laos; Vietnam
36 CHI 41 LAO MYA THA VIE
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia. Synonymy fide Flora of Thailand vol. 13(1)
Synonyms: hidden
= Azalea ciliicalyx (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron ciliicalyx subsp. lyi (H.Lév.) R.C.Fang; Fl. Yunnan. 4: 479 (1986)
= Rhododendron leptocladon Dop; Lecomte, Fl. Gen. Indo-Chine 3: 745 (1930)
= Rhododendron ludwigianum Hosseus; Beih. Bot. Centralbl. 28(2): 422 (1911)
= Rhododendron lyi H.Lév.; Repert. Spec. Nov. Regni Veg. 13: 147 (1914)
= Rhododendron missionarium H.Lév.; Bull. Acad. Int. Géogr. Bot. 25: 20 (1915)
= Rhododendron nemorosum R.C.Fang; Acta Bot. Yunnan. 6(3): 290 (1984)
= Rhododendron pseudociliicalyx Hutch.; Notes Roy. Bot. Gard. Edinburgh 12: 54 (1919)
= Rhododendron saravanense Dop; Lecomte (ed.), Fl. Indo-Chine 3: 745 (1930)
= Rhododendron surasianum Balf.f. & Craib; Notes Roy. Bot. Gard. Edinburgh 10: 160 (1917)
species :
Rhododendron ciliilobum
Sleumer; Reinwardtia 5: 64 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron ciliipes
Hutch.; Spec. Rhododendron, 457 (1930), et Notes Bot. Gard. Edinb. 16: 177 (1931), latine
Distribution: China (Yunnan); Myanmar (Kachin, Sagaing)
36 CHI 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron cinchoniflorum
Sleumer; Reinwardtia 5: 68 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron cinerascens
Sleumer; Reinwardtia 5: 130 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron cinnabarinum
Hook.f.; Rhod. Sikkim-Himal. t. 8 (1849)
subspecies :
subsp. cinnabarinum
Distribution: Tibet; Nepal; Bhutan; N-India (Arunachal Pradesh, Sikkim, West Bengal)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Cinnabarina
Synonyms: hidden
= Azalea roylei (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Rhododendron basfordii Davidian; Rhododendrons (London), 1979-1980: 61 (1980)
= Rhododendron blandfordiiflorum Hook.; Bot. Mag. 82: t. 4930 (1856)
= Rhododendron cinnabarinum var. breviforme Davidian; J. Amer. Rhododendron Soc. 36(1): 16 (1982)
= Rhododendron cinnabarinum var. roylei (Hook.f.) Tagg; Stevenson, Spec. Rhododendron 222 (1930)
= Rhododendron roylei Hook.f.; Rhod. Sikkim-Himal. t. 7 (1849)
= Rhododendron thibaudiense Dombrain; Floral Mag. (London) 4: t. 253 (1865)
subspecies :
subsp. tamaense
(Davidian) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 113 (1978)
Distribution: China (NW-Yunnan); NE-Myanmar
36 CHI 41 MYA
Synonyms: hidden
= Rhododendron tamaense Davidian; Rhododendrons (London), 1972: 54 (1972)
subspecies :
subsp. xanthocodon
(Hutch.) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 113 (1978)
Distribution: Tibet; Bhutan; NE-India (Arunachal Pradesh)
36 TIB 40 BHU IND
Synonyms: hidden
= Rhododendron cinnabarinum var. pallidum Hook.; Bot. Mag. 80: t. 4788 (1854)
= Rhododendron cinnabarinum var. purpurellum Cowan; Notes Roy. Bot. Gard. Edinburgh 21: 147 (1953)
= Rhododendron concatenans Hutch.; Gard. Chron. 1935, Ser. 3, 97: 376 (1935)
= Rhododendron xanthocodon Hutch.; Gard. Chron., Ser. 3, 95: 409 (1934)
species :
Rhododendron circinnatum
Cowan & Kingdon-Ward in Cowan; Notes Roy. Bot. Gard. Edinburgh 19(93): 179-180 (1936)
Distribution: S-Tibet
36 TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Lanata
species :
Rhododendron citriniflorum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 35-37 (1919), et ex Cowan, Notes Bot. Gard. Edinb. 20: 74 (1940), descr. emend.
Distribution: China (NW-Yunnan); SE-Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
Synonyms: hidden
= Rhododendron chlanidotum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 38 (1920)
variant :
var. horaeum
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 332 (1979)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhodendron horaeum var. rubens (Cowan) Davidian; Rhododendron Species, 3 (Ser. Neriiflorum-Thomsonii, etc.): 129 (1992)
= Rhododendron citriniflorum subsp. aureolum Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 75 (1940)
= Rhododendron citriniflorum subsp. horaeum (Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 76 (1940)
= Rhododendron citriniflorum subsp. rubens Cowan; Notes Roy. Bot. Gard. Edinburgh 20: 76 (1940)
= Rhododendron horaeum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 264 (1922)
= Rhododendron horaeum var. rubens (Cowan) Davidian; Rhododendron Species 3: 129 (1992)
species :
Rhododendron citrinum
(Hassk.) Hassk.; Cat. Pl. Hort. Bog. Alt. 161 (1844)
Distribution: Java; Lesser Sunda Isl.
42 JAW LSI
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Azalea citrina (Hassk.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron zippelii Blume; Fl. Javae, Pl. Inéd., t. 4 (1863-1883)
variant :
var. discoloratum
Sleumer; Reinwardtia 5: 145 (1960)
Distribution: Java
42 JAW
species :
Rhododendron clementinae
Forrest; Notes Roy. Bot. Gard. Edinburgh 8(40): 343 (1915)
Distribution: China (SW-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron cochlearifolium
Xiang Chen & Jia Y.Huang; Ann. Bot. Fenn. 49(5-6): 422 (2012)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron cockburnii
(Argent, A.Lamb & Phillipps) Craven; J. Adelaide Bot. Gard. 27(4): 28 (2014)
Distribution: Borneo (Sabah)
42 BOR
Synonyms: hidden
= Rhododendron brookeanum subsp. cockburnii (Argentina, A.Lamb & Phillipps) Argent; Edinburgh J. Bot. 52(3): 364 (1995)
= Rhododendron javanicum subsp. cockburnii Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42(1): 113 (1984)
species :
Rhododendron codonanthum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 249-250 (1922)
Distribution: China (NW-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron coelicum
Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 250 (1922)
Distribution: China (W-Yunnan); Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron coeloneurum
Diels; Bot. Jahrb. Syst. 29: 513 (1900)
Distribution: China (Guizhou, S-Sichuan, NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron coelorum
Wernham; Trans. Linn. Soc. London, Bot. 9: 96 (1916)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron colemanii
R.F.Mill.; J. Amer. Rhododendron Soc. 62(2): 76 (2008)
Distribution: USA (Alabama: Monroe Co.)
78 USA
species :
Rhododendron collettianum
Aitch. & Hemsl.; J. Linn. Soc. 18: 75 (1880)
Distribution: Afghanistan (Kunar / Nuristan, Paktia / Khost); Pakistan (Kurram, Chitral); India (Jammu & Kashmir)
34 AFG 40 IND PAK
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
species :
Rhododendron columbianum
(Piper) Harmaja; Ann. Bot. Fenn. 27(2): 203 (1990)
Name: Western Labrador tea
Distribution: Canada (Alberta, British Columbia); USA (California, Idaho, Montana, Nevada, Oregon, Utah, Washington State, Wyoming)
71 CDN 73 USA 76 USA
Synonyms: hidden
= Ledum californicum Kellogg; Proc. Calif. Acad. 2: 14 (1863)
= Ledum columbianum Piper; Contr. U.S. Natl. Herb. 11: 441 (1906)
= Ledum glandulosum Nutt.; Trans. Amer. Philos. Soc., n. s. 8: 270 (1842)
= Ledum glandulosum subsp. columbianum (Piper) C.L.Hitchc.; Leafl. W. Bot. 8: 7 (1956)
= Ledum glandulosum subsp. olivaceum C.L.Hitchc.; Leafl. W. Bot. 8: 6 (1956)
= Ledum glandulosum var. australe C.L.Hitchc.; Leafl. W. Bot. 8: 8 (1956)
= Ledum glandulosum var. californicum (Kellogg) C.L.Hitchc.; Leafl. W. Bot. 7: 6 (1956)
= Ledum glandulosum var. columbianum (Piper) C.L.Hitchc.; Vasc. Pl. Pacif. N. W. [C.L. Hitchcock et al.] 4: 16 (1959)
= Ledum groenlandicum subsp. glandulosum (Nutt.) Á.Löve & D.Löve; Univ. Colorado Stud., Ser. Biol. 17: 25 (1965)
= Rhododendron neoglandulosum Harmaja; Ann. Bot. Fenn. 27: 203 (1990), nom. nov. superfl.
species :
Rhododendron comisteum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 42-45 (1919)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron commonae
F.Först.; Repert. Spec. Nov. Regni Veg. 13: 223 (1914)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron nitens Sleumer; Reinwardtia 5: 162 (1960) (non Hutch. (1936)
= Rhododendron pseudonitens Sleumer; Blumea 11: 124 (1961)
= Rhododendron stonori Sleumer; Reinwardtia 5: 155 (1960)
species :
Rhododendron commutatum
Sleumer; Reinwardtia 5: 201 (1960)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron comparabile
Sleumer; Reinwardtia 5: 208 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron complexum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9: 222 (1916)
Distribution: China (W-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
species :
Rhododendron comptum
C.H.Wright; Bull. Misc. Inform. Kew 103 (1899)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
variant :
var. trichodes
Sleumer; Reinwardtia 5: 111 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron concinnoides
Hutch. & Kingdon-Ward; Spec. Rhododendron, 780 (1930), et Notes Bot. Gard. Edinb. 16: 180 (1931), latine
Distribution: India (Arunachal Pradesh)
40 IND
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Monantha
species :
Rhododendron concinnum
Hemsl.; J. Linn. Soc., Bot. 26: 21 (1889)
Distribution: China (Shaanxi, Henan, Hubei. Guizhou, Sichuan, Yunnan); Tibet
36 CHI TIB
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora
Synonyms: hidden
= Azalea concinna (Hemsl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron apiculatum Rehder & E.H.Wilson; Pl. Wilson. (Sarg.) 1(3): 520 (1913)
= Rhododendron atroviride Dunn; J. Linn. Soc., Bot. 39: 484 (1911), nom. illeg.
= Rhododendron benthamianum Hemsl.; Bull. Misc. Inform. Kew 1907, 319 (1907)
= Rhododendron concinnum var. benthamianum (Hemsl.) Davidian; Rhododendron Camellia Year Book 17: 194 (1963)
= Rhododendron concinnum var. laetevirens Cowan; Bot. Mag. 147: t. 8912 (1938)
= Rhododendron concinnum var. lepidanthum (Rehder & E.H.Wilson) Rehder; J. Arnold Arbor. 20: 424 (1939)
= Rhododendron concinnum var. pseudoyanthinum (Balf.f. ex Hutch.) Davidian; Rhododendron Year Book 17: 194 (1963), nom. superfl.
= Rhododendron coombense Hemsl.; Bot. Mag. 135: t. 8280 (1909)
= Rhododendron hutchinsonianum W.P.Fang; Acta Phytotax. Sin. 2: 83 (1953)
= Rhododendron pseudoyanthinum Balf.f. ex Hutch.; Spec. Rhododendron, 783 (1930)
= Rhododendron yanthinum Bureau & Franch.; J. Bot. [Morot] 5: 94 (1891)
= Rhododendron yanthinum var. lepidanthum Rehder & E.H.Wilson; Sarg., Pl. Wilson. 1: 519 (1913)
species :
Rhododendron coriaceum
Franch.; J. Bot. (Morot) 12(15-16): 258-259 (1898)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Falconera
Synonyms: hidden
= Rhododendron foveolatum Rehder & E.H.Wilson; Pl. Wilson. 1: 537 (1913)
species :
Rhododendron cornu-bovis
Sleumer; Reinwardtia 5: 152 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron correoides
J.J.Sm.; Meded. Herb. Leid. No. 25, 2 (1915)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron coniferum Wernham; Trans. Linn. Soc. London, Bot. 9: 97 (1916)
species :
Rhododendron coryanum
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 15(72): 99-103 (1926)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
species :
Rhododendron costatum
S.S.Ying; New Taxa New Names 7: 297 (2024)
Distribution: Taiwan
38 TAI
Remarks: provisionally accepted name
species :
Rhododendron cowanianum
Davidian; Notes Bot. Gard. Edinb. 21: 99 (1952)
Distribution: Nepal
40 NEP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lepidota
species :
Rhododendron coxianum
Davidian; Rhododendrons (London), 1972: 51 (1972)
Distribution: NE-India (Assam)
40 IND
Remarks: status doubtful
species :
Rhododendron crassifolium
Stapf; Trans. Linn. Soc. London Ser. 2, 4: 195 (1894)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron brevitubum J.J.Sm.; Ic. Bogor. t. 381 (1914)
= Rhododendron crassinervium Ridl.; J. Straits Branch Roy. Asiat. Soc. 63: 61 (1912)
variant :
var. pseudomurudense
(Sleumer) Argent; Rhododendrons subgen. Vireya, ed. 2: 305 (2015)
Distribution: EC-Borneo
42 BOR
Synonyms: hidden
= Rhododendron murudense Merr.; Sarawak Mus. J. 3: 542 (1928), non Merr.
= Rhododendron pseudomurudense Sleumer; Reinwardtia 5: 189 (1960)
species :
Rhododendron crassimedium
P.C.Tam; Bull. Bot. Res., Harbin 2(1): 96-97 (1982)
Distribution: China (S-Hunan, SW-Jiangxi)
36 CHI
species :
Rhododendron crassistylum
M.Y.He; J. Sichuan Univ., Nat. Sci. Ed. 24(1): 83, f. 1 (1987)
Distribution: China (SW-Jiangxi)
36 CHI
species :
Rhododendron crassum
Franch.; Bull. Soc. Bot. Fr. 34: 282 (1887)
Distribution: China (Yunnan); S-Tibet; N-India (Manipur, Nagaland, Arunachal Pradesh); NE-Myanmar (Chin, Kachin); Thailand; Laos; N-Vietnam
36 CHI TIB 40 IND 41 LAO MYA THA VIE
Synonyms: hidden
= Azalea crassa (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron chapaense Dop; Lecomte, Fl. Gen. Indo-Chine 3: 743 (1930)
= Rhododendron maddenii subsp. crassum (Franch.) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 107 (1978)
= Rhododendron maddenii var. obtusifolium Hutch.; Bot. Mag. 134: t. 8212 (1908)
= Rhododendron manipurense Balf.f. & G.Watt; Notes Roy. Bot. Gard. Edinburgh 10: 119 (1917)
= Rhododendron odoriferum Hutch.; Gard. Chron. 1927, Ser. 3, 82: 30 (1927)
species :
Rhododendron cravenii
Danet; Rhododendron (Melbourne) 55: 19 (2015)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron crenulatum
Hutch. ex Sleumer; Blumea, Suppl. 4, 44 (1958)
Distribution: Laos; Vietnam
41 LAO VIE
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron cretaceum
P.C.Tam; Survey Genus Rhododendron S. China 60, 108, f. 9 (1983)
Distribution: China (N-Guangdong)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron crinigerum
Franch.; J. Bot. (Morot) 12(15-16): 260 (1898)
Distribution: China (NW-Sichuan, NW-Yunnan); SE-Tibet; India (Arunachal Pradesh); Myanmar (Shan)
36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Glischra
Synonyms: hidden
= Rhododendron ixeuticum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 240-241 (1916)
variant :
var. euadenium
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16(79): 190 (1931)
Distribution: China (NW-Yunnan)
36 CHI
species :
Rhododendron cruttwellii
Sleumer; Reinwardtia 5: 120 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron cuffeanum
Craib ex Hutch.; Bot. Mag. t. 8721 (1917)
Distribution: Myanmar (Chin, Kachin)
41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron culminicola
F.Muell.; Trans. Roy. Soc. Vict. N. S. 1(2): 23 (1889)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron convexum Sleumer; Reinwardtia 5: 218 (1960)
= Rhododendron gregarium Sleumer; Reinwardtia 5: 221 (1960)
= Rhododendron keysseri F.Först.; Repert. Spec. Nov. Regni Veg. 13: 223 (1914)
= Rhododendron nodosum C.H.Wright; Bull. Misc. Inform. Kew 1899: 103 (1899)
species :
Rhododendron cumberlandense
E.L.Braun; Rhodora 43: 33 (1941)
Name: Cumberland rhododendron
Distribution: USA (Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee, Virginia)
78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea cumberlandensis (E.L.Braun) H.F.Copel.; Amer. Midl. Naturalist 30: 595 (1943)
species :
Rhododendron cuneatum
W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 8: 200 (1914)
Distribution: China (SW-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Rhododendron calcicola Millais; Rhododendrons, 132, 150 (1917)
= Rhododendron cheilanthum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11: 32 (1919)
= Rhododendron ravum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9: 270 (1916)
= Rhododendron sclerocladum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11: 133 (1919)
species :
Rhododendron cuneifolium
Stapf; Trans. Linn. Soc. London Ser. 2, 4: 198 (1894)
Distribution: Borneo; Sulawesi
42 BOR SUL
Synonyms: hidden
= Rhododendron cinnamomeum var. cunninghamii Paxton; Paxton´s Fl. Gard. 1: 81 (1850)
= Rhododendron quadrasianum var. cuneifolium (Stapf) H.F.Copel.
variant :
var. elongatum
Argent; Rhododendrons subgen. Vireya, ed. 2. 54 (2015)
Distribution: Borneo (Sabah)
42 BOR
variant :
var. microcarpum
Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42(1): 118 (1984), as ´microcapum´
Distribution: Borneo (Sabah)
42 BOR
species :
Rhododendron curviflorum
J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 2, 8: 50 (1912)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron cuspidellum
Sleumer; Reinwardtia 5: 200 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron cyanocarpum
(Franch.) W.W.Sm.; Trans. Bot. Soc. Edinburgh 26(3): 274-277 (1914)
Distribution: China (W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
Synonyms: hidden
= Rhododendron cyanocarpum var. eriphyllum (Balf.f. & W.W.Sm.) Tagg; Spec. Rhododendron 738 (1930)
= Rhododendron eriphyllum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10: 98 (1917)
= Rhododendron hedythamnum var. eglandulosum Hand.-Mazz.; Akad. Wiss. Wien, Math.-Naturwiss. Kl., Anz. 19: 3 (1923)
= Rhododendron thomsonii var. cyanocarpum Franch.; J. Bot. (Morot) 9: 389 (1895)
species :
Rhododendron cyrtophyllum
Wernham; Trans. Linn. Soc. London, Bot. 9: 97 (1916)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron dachengense
G.Z.Li; Acta Bot. Yunnan. 23: 287 (2001)
Distribution: China (EC-Guangxi)
36 CHI
species :
Rhododendron dalhousiae
Hook.f.; Rhod. Sikkim-Himal. 2. t. 1 (1849)
Distribution: Tibet; W-Nepal; Bhutan; N-India (Arunachal Pradesh, Sikkim, West Bengal); Bangladesh
36 TIB 40 BAN BHU IND NEP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
Synonyms: hidden
= Azalea macrocarpa (Griff.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Rhododendron dalhousieae var. pulchellum Van Geert; Nursery Cat. (Auguste Van Geert) 78: 18 (1879)
= Rhododendron lindleyanum Lavallée; Arb. Segrez. 156 (1877)
= Rhododendron macrocarpos Griff.; Itin. Pl. Khasyah Mts. 138 (1848)
= Rhododendron macrocarpum Van Houtte; J. Gén. Hort. 12: 83 (1857)
variant :
var. rhabdotum
(Balf.f. & Cooper) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 107 (1978)
Distribution: S-Tibet; Bhutan; India (Arunachal Pradesh)
36 TIB 40 BHU IND
Synonyms: hidden
= Rhododendron rhabdotum Balf.f. & Cooper; Notes Roy. Bot. Gard. Edinburgh 10: 141 (1917)
variant :
var. tashii
(Pradhan & Lachungpa) D.Bhattach.; Fasc. Fl. India 25: 51 (2014)
Distribution: N-India (Sikkim)
40 IND
Synonyms: hidden
= Rhododendron dalhousiae subsp. tashii Pradhan & Lachungpa; Sikkim-Himalayan Rhododendrons 30 (1990)
species :
Rhododendron danbaense
L.C.Hu; Bull. Bot. Res., Harbin 6(1): 155-156, pl. (1986)
Distribution: China (W-Sichuan)
36 CHI
species :
Rhododendron dasycladoides
Hand.-Mazz.; Symb. Sin. 7(4): 781-782 (1936)
Distribution: China (SW-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Selensia
species :
Rhododendron dasypetalum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11: 45 (1919)
Distribution: China (NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
species :
Rhododendron datiandingense
Z.J.Feng; J. S. China Agric. Univ. 17(1): 59-60, f. 1 (1996)
Distribution: China (W-Guangdong)
36 CHI
species :
Rhododendron dauricum
L.; Sp. Pl. 392 (1753)
Distribution: Siberia (Altai, Buryatia, Chita, Irkutsk, Krasnoyarsk, Tuva, W-Siberia, Yakutia); Russian Far East (Amur, Khabarovsk, Primorye); China (Heilongjiang, Nei Mongol, Jilin); Mongolia; North Korea; South Korea; Japan (Hokkaido)
30 SIB 31 RFE 36 CHI 37 MON 38 JAP KOR NKO
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Rhodorastra
Synonyms: hidden
= Azalea dahurica (L.) K.Koch; Dendrologie 3 (1872)
= Azalea daurica (L.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron atrovirens (Ker Gawl.) Tagg; Stevenson, Spec. Rhododendron 851 (1930), nom. illeg.
= Rhododendron dauricum f. albiflorum (Turcz.) C.F.Fang; Clavis Pl. Chinae Bor.-Or. ed. 2 (ed. P. Y. Fu) 496 (1995), isonym
= Rhododendron dauricum f. albiflorum (Turcz.) Y.C.Zhu; Pl. Medik. Chinae Bor.-orient. (ed. Zhu You Chang): 864 (1989)
= Rhododendron dauricum subsp. ledebourii (Pojark.) Alexandrova & P.A.Schmidt; Betr. Gehölzk. 67 (1981 publ. 1982)
= Rhododendron dauricum var. atrovirens Ker Gawl.; Bot. Reg. 3: t. 194 (1817)
= Rhododendron dauricum var. pallidum Regel; Gartenflora 11: 377 (1862)
= Rhododendron dauricum var. roseum DC.; Prodr. [A. P. de Candolle] 7: 757 (1839)
= Rhododendron dauricum var. sempervirens Sims; Bot. Mag. 44: t. 1888 (1817)
= Rhododendron ledebourii Pojark.; Fl. URSS 18: 722 (1952)
species :
Rhododendron davidi
Franch.; Bull. Soc. Bot. France 33: 230-231 (1886)
Distribution: China (W-Sichuan, NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
species :
Rhododendron davidsonianum
Rehder & E.H.Wilson; Sarg., Pl. Wilson. 1: 515 (1913)
Distribution: China (W-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora
Synonyms: hidden
= Rhododendron charianthum Hutch.; Bot. Mag. t. 8665 (1916)
species :
Rhododendron dawuense
H.P.Yang; Bull. Bot. Res. North-East. Forest. Inst. 3(2): 98 (1983)
Distribution: China (NW-Sichuan)
36 CHI
species :
Rhododendron dayaoshanense
L.M.Gao & D.Z.Li; Novon 13: 189 (2003)
Distribution: China (E-Guangxi)
36 CHI
species :
Rhododendron dayiense
M.Y.He; Acta Phytotax. Sin. 35(1): 63-66, f. 1 (1997)
Distribution: China (Sichuan)
36 CHI
species :
Rhododendron declivatum
Ching & H.P.Yang; Bull. Bot. Res. North-East. Forest. Inst. 3(2): 89 (1983)
Distribution: China (SW-Shaanxi)
36 CHI
species :
Rhododendron decorum
Franch.; Bull. Soc. Bot. Fr. 33: 230 (1886); et in Nouv. Arch. Mus. Paris, Ser. 2(10): 45 (1888)
subspecies :
subsp. decorum
Distribution: China (SW-Sichuan, W-Guizhou, NW-Yunnan); SE-Tibet; NE-Myanmar (Kachin); Laos
36 CHI TIB 41 LAO MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
Synonyms: hidden
= Azalea decora (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron franchetianum H.Lév.; Bull. Soc. Agric. Sarthe 39: 45 (1903)
= Rhododendron giraudiasii H.Lév.; Repert. Spec. Nov. Regni Veg. 13(368-369): 340 (1914)
= Rhododendron spooneri Hemsl. & E.H.Wilson; Bull. Misc. Inform. Kew 1910(4): 110-111 (1910)
subspecies :
subsp. cordatum
W.K.Hu; Bull. Bot. Res., Harbin 8(3): 58, pl. 9 (1988)
Distribution: China (Yunnan)
36 CHI
subspecies :
subsp. diaprepes
(Balf.f. & W.W.Sm.) T.L.Ming; Acta Bot. Yunnan. 6(2): 147 (1984)
Distribution: China (SW-Sichuan, W-Yunnan); Myanmar (Kachin); Vietnam
36 CHI 41 MYA VIE
Synonyms: hidden
= Hymenanthes diaprepes (Balf.f. & W.W.Sm.) H.F.Copel.; Amer. Midl. Naturalist 30: 614 (1943)
= Rhododendron diaprepes Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 100-101 (1917)
= Rhododendron rasile Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 139-141 (1917)
subspecies :
subsp. parvistigmaticum
W.K.Hu; Bull. Bot. Res., Harbin 8(3): 57-58, pl. 8 (1988)
Distribution: China (SW-Sichuan)
36 CHI
species :
Rhododendron degronianum
Carrière; Rev. Hortic. 368 (1869)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Azalea degroniana (Carrière) Makino; J. Jap. Bot. 5: No. 8, sub tab. (1928)
= Rhododendron degronianum f. leucanthum (Makino) H.Hara; Enum. Spermatophytarum Japon. 1: 30 (1948)
= Rhododendron hymenanthes var. pentamerum (Maxim.) Makino; Bot. Mag. (Tokyo) 16: 33 (1902)
= Rhododendron japonicum var. pentamerum (Maxim.) Hutch.; Bot. Mag. 137: t. 8403 (1911)
= Rhododendron metternichii subsp. pentamerum (Maxim.) Sugim.; New Keys Jap. Trees 470 (1961)
= Rhododendron metternichii var. degronianum (Carrière) Makino; Ill. Fl. Nippon 250 (1940)
= Rhododendron metternichii var. pentamerum Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 22 (1870)
= Rhododendron nakaii Komatsu; Icon. Pl. Koisikav. 1: 145 (1913)
= Rhododendron pentamerum (Maxim.) Matsum. & Nakai; Cat. Sem. Hort. Bot. Univ. Imp. Tokyo, 1915-16, 24 (1916)
variant :
var. amagianum
(T.Yamaz.) T.Yamaz.; Fl. Japan, 3a: 42 (1993)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron metternichii f. amagianum T.Yamaz.; J. Jap. Bot., 56(11): 365 (1981)
= Rhododendron degronianum f. amagianum (T.Yamaz.) H.Hara; J. Jap. Bot. 61(8): 246 (1986)
species :
Rhododendron dekatanum
Cowan; Notes Bot. Gard. Edinb. 19: 226 (1937)
Distribution: S-Tibet; India (Arunachal Pradesh)
36 TIB 40 IND
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Boothia
species :
Rhododendron delavayi
Franch.; Bull. Soc. Bot. France 33: 231 (1886)
Distribution: China (NW-Guangxi, W-Guizhou, Yunnan, SW-Sichuan); Bhutan; India (Arunachal Pradesh, Manipur, Mizoram, Meghalaya, Nagaland); Myanmar (Chin, Kachin); N-Thailand; N-Vietnam
36 CHI 40 BHU IND 41 MYA THA VIE
Synonyms: hidden
= Azalea delavayi (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron arboreum subsp. delavayi (Franch.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 328 (1979)
= Rhododendron pilovittatum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 134-135 (1917)
variant :
var. adenostylum
Xiang Chen & Jia Y.Huang; Ann. Bot. Fenn. 47(5): 401 (2010)
Distribution: China (Guizhou)
36 CHI
variant :
var. peramoenum
(Balf.f. & Forrest) T.L.Ming; Acta Bot. Yunnan. 6(2): 148 (1984)
Distribution: China (W-Guizhou, W-Yunnan); SE-Tibet; NE-India (Arunachal Pradesh); Myanmar
36 CHI TIB 40 IND 41 MYA
Synonyms: hidden
= Rhododendron arboreum var. peramoenum (Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 328 (1979)
= Rhododendron peramoenum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 56 (1920)
variant :
var. pilostylum
K.M.Feng; Acta Bot. Yunnan. 5(3): 265 (1983)
Distribution: China (SE-Yunnan)
36 CHI
species :
Rhododendron delicatulum
Sleumer; Reinwardtia 5: 78 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
variant :
var. lanceolatoides
Sleumer; Reinwardtia 5: 78 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron dendricola
Hutch.; Notes Roy. Bot. Gard. Edinburgh 12: 60 (1919)
Distribution: China (NW-Yunnan); SE-Tibet; NE-India (Arunachal Pradesh); N-Myanmar (Kachin, Sagaing)
36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
Synonyms: hidden
= Rhododendron atentsiense Hand.-Mazz.; Anz. Akad. Wiss. Wien, Math.-Naturwiss. Kl. 58: 152 (1921)
= Rhododendron notatum Hutch.; Spec. Rhododendron, 469 (1930), et Notes Bot. Gard. Edinb. 16: 177 (1931), latine
species :
Rhododendron dendrocharis
Franch.; Bull. Soc. Bot. Fr. 33: 233 (1886); et in Nouv. Arch. Mus. Paris. Ser. 2(10): 51, t. 13, fig. a. (1887 publ. 1888)
Distribution: China (W-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Moupinensia
species :
Rhododendron densifolium
K.M.Feng; Acta Bot. Yunnan. 5(3): 266 (1983)
Distribution: China (SE-Yunnan); Vietnam
36 CHI 41 VIE
species :
Rhododendron denudatum
H.Lév.; Repert. Spec. Nov. Regni Veg. 13(368-369): 339 (1914)
Distribution: China (NW-Guizhou, SW-Sichuan, E-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
Synonyms: hidden
= Rhododendron xanthoneuron H.Lév.; Repert. Spec. Nov. Regni Veg. 13(368-369): 340 (1914)
variant :
var. glabriovarium
Xiang Chen & X.Chen; Nordic J. Bot. 28(4): 498 (2010)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron detersile
Franch.; J. Bot. (Morot) 12(15-16): 260-261 (1898)
Distribution: China (Shaanxi, NE-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron detzneranum
Sleumer; Blumea 21(2): 359 (1973)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
species :
Rhododendron dianthosmum
Sleumer; Blumea 12: 100 (1963)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron dichroanthum
Diels; Notes Roy. Bot. Gard. Edinburgh 5(25): 212-213 (1912), et ex Cowan, Notes Bot. Gard. Edinb. 20: 85 (1940), descr. emend.
subspecies :
subsp. dichroanthum
Distribution: China (W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
subspecies :
subsp. apodectum
(Balf.f. & W.W.Sm.) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 86 (1940)
Distribution: China (W-Yunnan); Myanmar
36 CHI 41 MYA
Synonyms: hidden
= Rhododendron apodectum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 83-84 (1917)
= Rhododendron dichroanthum var. apodectum (Balf.f. & W.W.Sm.) T.L.Ming; Acta Bot. Yunnan. 6(2): 168 (1984)
= Rhododendron jangtzowense Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 271-272 (1922)
= Rhododendron liratum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 274 (1922)
subspecies :
subsp. scyphocalyx
(Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 88 (1940)
Distribution: China (NW-Yunnan); Myanmar (Kachin)
36 CHI 41 MYA
Synonyms: hidden
= Rhododendron dichroanthum subsp. herpesticum (Balf.f. & Kingdon-Ward) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 87 (1940)
= Rhododendron dichroanthum var. scyphocalyx (Balf.f. & Forrest) T.L.Ming; Acta Bot. Yunnan. 6(2): 170 (1984)
= Rhododendron herpesticum Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 114-116 (1917)
= Rhododendron scyphocalyx Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 291-292 (1922)
= Rhododendron torquatum Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 303 (1922)
subspecies :
subsp. septentrionale
Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 87 (1940)
Distribution: China (W-Yunnan); NE-Myanmar
36 CHI 41 MYA
Synonyms: hidden
= Rhododendron dichroanthum var. septentrionale (Cowan) T.L.Ming; Acta Bot. Yunnan. 6: 170 (1984)
= Rhododendron scyphocalyx var. septentrionale Tagg ex Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 308 (1989)
species :
Rhododendron dielsianum
Schltr.; Bot. Jahrb. Syst. 55: 150 (1918)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron laureola Schltr.; Bot. Jahrb. Syst. 55: 151 (1918)
variant :
var. stylotrichum
Sleumer; Reinwardtia 5: 80 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron dignabile
Cowan; Notes Roy. Bot. Gard. Edinburgh 19(94): 241-242 (1937)
Distribution: S-Tibet
36 TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron dilatatum
Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 34 (1863)
subspecies :
subsp. dilatatum
Distribution: Japan (Honshu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Azalea dilatata (Miq.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron decandrum var. pilosum H.Hara; Enum. Spermatophytarum Japon. 1: 29 (1948)
= Rhododendron dilatatum f. hypopilosum Sh.Kurata; Illustr. Forest Trees Japan 3: 124 (1971)
= Rhododendron dilatatum f. inobeanum (Honda) Minamit.; J. Jap. Bot. 94: 216 (2019)
= Rhododendron dilatatum f. leucanthum Sugim.; New Keys Woody Pl. Jap. 377 (1972), nom. illeg.
= Rhododendron dilatatum f. niveum Minamit.; J. Jap. Bot. 93: 91 (2018)
= Rhododendron dilatatum f. pilosum (H.Hara) Minamit.; J. Jap. Bot. 94: 216 (2019)
= Rhododendron inobeanum Honda; Bot. Mag. (Tokyo) 53: 383 (1939)
variant :
var. boreale
Sugim.; New Keys Woody Pl. Jap. 509 (1972)
Distribution: Japan (Hokkaido)
38 JAP
Synonyms: hidden
= Rhododendron hidakanum H.Hara; J. Jap. Bot. 49(12): 353 (1974)
variant :
var. decandrum
Makino; Bot. Mag. (Tokyo) 7: (134) (1893)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron decandrum (Makino) Makino; J. Jap. Bot. 1: 21 (1917)
= Rhododendron dilatatum f. albiflorum (Honda) Hatus.; Sci. Rep. Yokosuka City Mus. 15: 21 (1969)
= Rhododendron dilatatum f. decandrum (Makino) Minamit.; J. Jap. Bot. 94(4): 216 (2019)
= Rhododendron dilatatum subsp. decandrum (Makino) X.F.Jin & B.Y.Ding; Ann. Missouri Bot. Gard. 97(2): 174 (2010)
variant :
var. lasiocarpum
(H.Hara) T.Yamaz.; Rev. Gen. Rhododendron Japan, Taiwan, Korea & Sakhalin 93 (1996)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron decandrum f. lasiocarpum H.Hara; Enum. Spermatophytarum Japon. 1: 29 (1948)
= Rhododendron dilatatum f. lasiocarpum (H.Hara) T.Yamaz.; Fl. Japan, 3a: 33 (1993)
variant :
var. nippoense
Minamit.; J. Jap. Bot. 93(2): 88 (2018)
Distribution: Japan
38 JAP
variant :
var. occidentalitosaense
Minamit.; J. Jap. Bot. 93(2): 92 (2018)
Distribution: Japan
38 JAP
variant :
var. ookuemontanum
Minamit.; J. Jap. Bot. 93(2): 89 (2018)
Distribution: Japan
38 JAP
Synonyms: hidden
= Rhododendron dilatatum f. ookuemontanum Minamit.; J. Jap. Bot. 93(2): 89 (2018)
subspecies :
subsp. arborescens
Minamit.; J. Jap. Bot. 93(2): 92 (2018)
Distribution: Japan
38 JAP
subspecies :
subsp. satsumense
(T.Yamaz.) Minamit.; J. Jap. Bot. 93(2): 88 (2018)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron dilatatum var. satsumense T.Yamaz.; J. Jap. Bot., 56(11): 363 (1981)
species :
Rhododendron dimitrum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 50-54 (1919)
Distribution: China (W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. unknown
species :
Rhododendron discolor
Franch.; J. Bot. (Morot) 9(21): 391 (1895)
Distribution: China (Anhui, Chongqing, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Yunnan, Zhejiang)
36 CHI
Synonyms: hidden
= Rhododendron discolor f. carneum E.H.Wilson; J. Arnold Arbor. 5: 97 (1924)
= Rhododendron fortunei subsp. discolor (Franch.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 330 (1979)
= Rhododendron fortunei var. houlstonii (Hemsl. & E.H.Wilson) Rehder & E.H.Wilson; Sarg., Pl. Wilson. 1: 541 (1913)
= Rhododendron fortunei var. kwangfuense (Chun & W.P.Fang) G.Z.Li; Guihaia 15(3): 195 (1995)
= Rhododendron houlstonii Hemsl. & E.H.Wilson; Bull. Misc. Inform. Kew 1910(4): 110 (1910)
= Rhododendron kwangfuense Chun & W.P.Fang; Acta Phytotax. Sin. 6(2): 170-171, pl. 41, f. 2 (1957)
= Rhododendron mandarinorum Diels; Bot. Jahrb. Syst. 29(3-4): 510-511 (1900)
species :
Rhododendron disterigmoides
Sleumer; Reinwardtia 5: 140 (1960)
subspecies :
subsp. disterigmoides
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
subspecies :
subsp. astromontium
Argent; Folia Malaysiana 4(2): 125 (2003)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron diversipilosum
(Nakai) Harmaja; Ann. Bot. Fenn. 35(4): 263 (1998 publ. 1999)
Distribution: Russian Far East (Amur, Khabarovsk, Kuril Isl., Primorye, Sakhalin); Japan (Hokkaido)
31 RFE 38 JAP
Synonyms: hidden
= Ledum palustre f. diversiplosum (Nakai) Makino & Tanaka; Man. Fl. Nippon 421 (1927)
= Ledum palustre f. yesoense (Nakai) Makino & Tanaka; Man. Fl. Nippon 421 (1927)
= Ledum palustre subsp. diversipilosum (Nakai) H.Hara; J. Fac. Sci. Univ. Tokyo, sect. III 7: 351 (1956)
= Ledum palustre var. diversipilosum Nakai; Bot. Mag. (Tokyo) 31: 102 (1917)
= Ledum palustre var. nipponicum Nakai; Nakai & G. Koidz., Trees Shrubs Japan 12 (1922)
= Ledum palustre var. yesoense Nakai; Nakai & G. Koidz., Trees Shrubs Japan 13 (1922)
species :
Rhododendron dumicola
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16(79): 190-191 (1931)
Distribution: China (NW-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron durionifolium
Becc.; Malesia 1: 202 (1878)
subspecies :
subsp. durionifolium
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron mjoebergii Merr.; Sarawak Mus. J. 3: 542 (1928)
subspecies :
subsp. sabahense
Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42(1): 119 (1984)
Distribution: Borneo (Sabah)
42 BOR
species :
Rhododendron dutartrei
Danet; Adansonia 29(1): 108 (2007)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron eastmanii
Kron & Creel; Novon 9(3): 377 (1999)
Name: Santee azalea
Distribution: USA (South Carolina)
78 USA
species :
Rhododendron ebianense
M.Y.Fang; Rhododendron Notes Rec. 2: 23 (1985), et Acta Phytotax. Sin. 30(6): 553 (1992)
Distribution: China (SC-Sichuan)
36 CHI
species :
Rhododendron eclecteum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12(57-58): 105-108 (1920)
Distribution: China (SW-Sichuan, NW-Yunnan); SE-Tibet; NE-India (Arunachal Pradesh); NE-Myanmar
36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
Synonyms: hidden
= Rhododendron brachyandrum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 32 (1920)
= Rhododendron eclecteum var. brachyandrum (Balf.f. & Forrest) Cowan & Davidian; Rhododendron Year Book 6: 169 (1951)
variant :
var. bellatulum
Balf.f. ex Tagg; Spec. Rhododendron 739 (1930)
Distribution: China (NW-Yunnan); SE-Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: possible hybrid between Rhododendron eclecteum and R. selense
species :
Rhododendron edanoi
Merr. & Quisumb.; Philipp. J. Sci. 82: 333 (1954)
subspecies :
subsp. edanoi
Distribution: Palawan
42 PLW
Remarks: Subgen. Rhododendron
subspecies :
subsp. pneumonanthum
(Sleumer) Argent; Gard. Bull. Singapore 56(1-2): 93 (2004)
Distribution: Borneo
42 BOR
Synonyms: hidden
= Rhododendron pneumonanthum Sleumer; Reinwardtia 5: 132 (1960)
species :
Rhododendron edgeworthii
Hook.f.; Rhod. Sikkim-Himal. 2. t. 21 (1849)
Distribution: China (SW-Sichuan, Yunnan); SE-Tibet; Bhutan; India (Sikkim, West Bengal, Arunachal Pradesh); Myanmar (Kachin)
36 CHI TIB 40 BHU IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Edgeworthia
Synonyms: hidden
= Azalea bullata (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Azalea edgeworthii (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron bullatum Franch.; Bull. Soc. Bot. Fr. 34: 281 (1887)
= Rhododendron sciaphilum Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 10: 146 (1917)
species :
Rhododendron eheinense
M.Y.He & Z.J.Zhao; J. Sichuan Univ., Nat. Sci. Ed. 32(4): 477 (1995)
Distribution: China (Sichuan)
36 CHI
species :
Rhododendron elegantulum
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 15(75): 311-312 (1927)
Distribution: China (SW-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
species :
Rhododendron elliottii
G.Watt ex Lace & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 8: 214 (1914), descr. ampl.
Distribution: India (Nagaland)
40 IND
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Parishia
species :
Rhododendron emarginatum
Hemsl. & E.H.Wilson; Bull. Misc. Inform. Kew 118 (1910)
Distribution: China (Guangxi, Guizhou, SE-Yunnan); Laos; Vietnam
36 CHI 41 LAO VIE
Remarks: Subgen. Rhododendron, Sect. Vireya
Synonyms: hidden
= Rhododendron emarginatum var. eriocarpum K.M.Feng; Acta Bot. Yunnan. 5(3): 268 (1983)
= Rhododendron euonymifolium H.Lév.; Repert. Spec. Nov. Regni Veg. 12: 103 (1913)
= Rhododendron leiboense Z.J.Zhao; Bull. Bot. Res., Harbin 7(3): 57 (1987)
= Rhododendron maguanense K.M.Feng; Acta Bot. Yunnan. 5: 268 (1983)
= Rhododendron poilanei Dop; Lecomte (ed.), Fl. Indo-Chine 3: 739 (1930)
species :
Rhododendron englerianum
Koord.; Nova Guinea 8: 186 (1909)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron erastum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 60-62 (1919)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
Synonyms: hidden
= Rhododendron porphyrophyllum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 108-110 (1919)
= Rhododendron serpens Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 135-137 (1919)
species :
Rhododendron ericoides
H.Low ex Hook.f.; Hooker´s Icon. Pl., t. 887 (1852)
Distribution: N-Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron eriobotryoides
Xiang Chen & Jia Y.Huang; J. Trop. Subtrop. Bot. 18(3): 260 (2010)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron eriocarpum
(Hayata) Nakai; Nakai & Koidz. Trees & Shrubs Japan Proper, ed. 1, 97 (1922)
Distribution: Japan (Kyushu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron indicum var. eriocarpum Hayata; Icon. Pl. Formosan. 3: 134 (1913)
= Rhododendron indicum var. tamurae Makino; Bot. Mag. (Tokyo) 18: 102 (1904)
= Rhododendron tamurae (Makino) Masam.; Prelim. Rep. Veg. Yakus. 106 (1929)
variant :
var. tawadae
Ohwi; Bull. Nat. Sci. Mag. Tokyo 34: 4 (1954)
Distribution: Ryukyu Isl.
38 NNS
Synonyms: hidden
= Rhododendron simsii var. tawadae (Ohwi) Hatus.; J. Geobot. 7: 21 (1958)
= Rhododendron tawadae (Ohwi) Ohwi; J. Jap. Bot. 29: 369 (1954)
species :
Rhododendron erosipetalum
J.J.Sm.; Nova Guinea 18: 91 (1936)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron erosum
Cowan; Notes Roy. Bot. Gard. Edinburgh 19(94): 225-226 (1937)
Distribution: Tibet
36 TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Barbata
species :
Rhododendron esetulosum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 42-43 (1920)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Selensia
Synonyms: hidden
= Rhododendron manopeplum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 275-276 (1922)
species :
Rhododendron euchroum
Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 228-229 (1916)
Distribution: China (W-Yunnan); NE-Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron eudoxum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 62-64 (1919)
Distribution: China (NW-Yunnan); SE-Tibet; NE-India (Arunachal Pradesh)
36 CHI TIB 40 IND
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
Synonyms: hidden
= Rhododendron eudoxum subsp. trichomiscum (Balf.f. & Forrest) Tagg; Spec. Rhododendron 549 (1930)
= Rhododendron fulvastrum subsp. trichomiscum (Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 79 (1940)
= Rhododendron fulvastrum subsp. trichophlebium (Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 79 (1940)
= Rhododendron temenium subsp. albipetalum Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 83 (1940)
= Rhododendron temenium subsp. rhodanthum Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 81-82 (1940)
= Rhododendron trichomiscum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12(57-58): 169-173 (1920)
= Rhododendron trichophlebium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 62 (1920)
variant :
var. brunneifolium
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 333 (1979)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron brunneifolium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 33 (1920)
= Rhododendron eudoxum subsp. brunneifolium (Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 77-78 (1940), isonym
= Rhododendron eudoxum subsp. brunneifolium (Balf.f. & Forrest) Tagg; Spec. Rhododendron 549 (1930)
variant :
var. mesopolium
(Balf.f. & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 333 (1979)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron asteium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 235-236 (1922)
= Rhododendron epipastum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(65): 258-259 (1922)
= Rhododendron eudoxum subsp. asteium (Balf.f. & Forrest) Tagg; Spec. Rhododendron 549 (1930)
= Rhododendron eudoxum subsp. epipastum (Balf.f. & Forrest) Tagg; Spec. Rhododendron 549 (1930)
= Rhododendron eudoxum subsp. mesopolium (Balf.f. & Forrest) Tagg; Spec. Rhododendron 549 (1930)
= Rhododendron fulvastrum subsp. epipastum (Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 80 (1940)
= Rhododendron fulvastrum subsp. mesopolium (Balf.f. & Forrest) Cowan; Notes Roy. Bot. Gard. Edinburgh 20(97): 79 (1940)
= Rhododendron mesopolium Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 51-52 (1920)
species :
Rhododendron eurysiphon
Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16(79): 191-192 (1931)
Distribution: SE-Tibet; Myanmar (Kachin)
36 TIB 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
species :
Rhododendron evelyneae
Danet; Adansonia 27(2): 270 (2005)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron exasperatum
Tagg; Stevenson, Spec. Rhododendron 836 (1930), et Notes Roy. Bot. Gard. Edinburgh 16(79): 192-194 (1931)
Distribution: Tibet; NE-India (Arunachal Pradesh); Myanmar (Kachin, Sagaing)
36 TIB 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Barbata
species :
Rhododendron excellens
Hemsl. & E.H.Wilson; Bull. Misc. Inform. Kew 113 (1910)
Distribution: China (S-Guizhou, SE-Yunnan); N-Vietnam
36 CHI 41 VIE
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron excelsum
A.Chev.; Rev. Bot. Appliq. 9: 255 (1929)
Distribution: C-Vietnam
41 VIE
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
species :
Rhododendron extraneum
(Sleumer) Craven; J. Adelaide Bot. Gard. 27(4): 28 (2014)
Distribution: Sumatra
42 SUM
Synonyms: hidden
= Rhododendron brookeanum var. extraneum Sleumer; Reinwardtia 5: 225 (1960)
species :
Rhododendron extrorsum
J.J.Sm.; Nova Guinea 18: 95 (1936)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron exuberans
(Sleumer) Argent; Bot. J. Linn. Soc. 85(1): 12 (1982)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron nervulosum var. exuberans Sleumer; Blumea 12: 113 (1963)
species :
Rhododendron eymae
Sleumer; Reinwardtia 5: 74 (1960)
Distribution: Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
species :
Rhododendron faberi
Hemsl.; J. Linn. Soc., Bot. 26(173): 22-23 (1889)
Distribution: China (W-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Azalea faberi (Hemsl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron faberioides Balf.f.; Notes Roy. Bot. Gard. Edinburgh 13(61): 44 (1920)
= Rhododendron ochrocalyx Delavay ex Millais; Rhododendrons 160 (1917)
= Rhododendron wuense Balf.f.; Notes Roy. Bot. Gard. Edinburgh 13(61): 64 (1920)
species :
Rhododendron facetum
Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 10: 104 (1917)
Distribution: China (W-Yunnan); NE-Myanmar (Kachin); N-Vietnam
36 CHI 41 MYA VIE
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Parishia
Synonyms: hidden
= Rhododendron eriogynum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 101-103 (1917)
species :
Rhododendron facium
D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 124 (1978)
Distribution: SE-Tibet
36 TIB
Remarks: status unconfirmed
species :
Rhododendron faithiae
Chun; Sunyatsenia 2(1): 78-80, t. 19 (1934)
Distribution: China (SW-Guangdong, E-Guangxi)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
species :
Rhododendron falconeri
Hook.f.; Rhod. Sikkim-Himal. t. 10 (1849)
Distribution: Nepal; Bhutan; N-India (Sikkim, Darjeeling, Arunachal Pradesh); Myanmar (Chin, Kachin)
40 BHU IND NEP 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Falconera
Synonyms: hidden
= Azalea falconeri (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Rhododendron eximium Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 364 (1853)
= Rhododendron falconeri subsp. eximium (Nutt.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37: 330 (1979)
= Rhododendron venosum Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 365 (1853)
species :
Rhododendron fallacinum
Sleumer; Reinwardtia 5: 99 (1960)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron fangchengense
P.C.Tam; Guihaia 2(2): 71, f. 3 (1982)
Distribution: China (S-Guangxi)
36 CHI
Remarks: status doubtful, not listed in Fl. of China
species :
Rhododendron farinosum
H.Lév.; Repert. Spec. Nov. Regni Veg. 13(368-369): 340. 1914.
Distribution: China (NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
species :
Rhododendron farrerae
Sweet; Brit. Fl. Gard. 2: t. 95 (1831)
Distribution: China (Chongqing, Fujian, Guangdong, Guangxi, Hunan, Jiangxi)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Azalea farrerae (Sweet) K.Koch; Dendrologie 2(2): 178 (1873)
= Azalea farrerae (Sweet) Kuntze; Revis. Gen. Pl. 2: 387 (1891), isonym
= Azalea squamata Lindl.; J. Hort. Soc. 1: 152 (1849)
= Azalea squamosa (Lindl.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Rhododendron cinereoserratum P.C.Tam; Bull. Bot. Res., Harbin 2(4): 77 (1982), et Survey Genus Rhododendron S. China 95, 28 (1982 publ. 1983)
= Rhododendron farrerae var. leucotrichum Franch.; J. Bot. (Morot) 9: 394 (1895)
species :
Rhododendron fastigiatum
Franch.; Bull. Soc. Bot. Fr. 33: 234 (1886)
Distribution: China (W-Yunnan, NW-Yunnan, SW-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Azalea fastigiata (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron nanum H.Lév.; Repert. Spec. Nov. Regni Veg. 12: 285 (1913)
species :
Rhododendron faucium
D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 121, 124 (1978)
Distribution: SE-Tibet; NE-India (Arunachal Pradesh)
36 TIB 40 IND
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
species :
Rhododendron feddei
H.Lév.; Repert. Spec. Nov. Regni Veg. 12: 102 (1913)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron ferrugineum
L.; Sp. Pl. 392 (1753)
Name: Rostblättrige Alpenrose (DE)
Distribution: Germany (+Baden-Württemberg, Bayern); Switzerland; Liechtenstein; Austria; N-Spain (Pyrenees); Andorra; France; Italy; Slovenia; Croatia; Serbia; Kosovo; North Macedonia; Albania
11 AUT GER LIE SWI 12 ADO FRA SPA 13 ALB CRO ITA KOS NMA SLV SRB
Remarks: Sect. Rhododendron, subsect. Rhododendron
Synonyms: hidden
= Azalea ferruginea (L.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Chamaerhododendron ferrugineum (L.) Bubani; Fl. Pyren. [Bubani] 2: 5 (1900)
= Plinthochroma ferrugineum (L.) Dulac; Fl. Hautes-Pyrénées 419 (1867)
= Rhododendron ferrugineum f. albiflorum (Thürlings) Braun-Blanq.; 1640 (1926)
= Rhododendron ferrugineum f. albiflorum Rhiner; 220 (1894), nom. inval.
= Rhododendron ferrugineum f. album (D.Don) Zabel; Beissn. et al., Handb. Laubholzben. [Beissner et al.] 375 (1903)
= Rhododendron ferrugineum f. atrococcineum (Bean) Rehder; Bibliogr. Cult. Trees 509 (1949)
= Rhododendron ferrugineum f. erectum (Millais) Rehder; Bibliogr. Cult. Trees 510 (1949)
= Rhododendron ferrugineum f. plenum Rehder; Bibliogr. Cult. Trees 510 (1949)
= Rhododendron ferrugineum f. variegatum (Bean) Rehder; Bibliogr. Cult. Trees 509 (1949)
= Rhododendron ferrugineum var. albiflorum Brügger; Naturgesch. Beitr. Umg. Chur [Fl. Curiensis] 81 (1874), nom. inval.
= Rhododendron ferrugineum var. albiflorum DC.; Prodr. [A. P. de Candolle] 7: 724 (1839)
= Rhododendron ferrugineum var. album D.Don; Sw., Brit. Fl. Gard., ser. 2, 3: t. 258 (1835)
= Rhododendron ferrugineum var. atrococcineum Bean; Trees & Shrubs Brit. Isles 2: 355 (1914)
= Rhododendron ferrugineum var. erectum Millais; Rhododendrons 164 (1917)
= Rhododendron ferrugineum var. variegatum Bean; Trees & Shrubs Brit. Isles 2: 355 (1914)
= Rhododendron germanicum var. ferrugineum (L.) Hoppe; Flora (Regensburg) 20: 187 (1837), nom. superfl.
species :
Rhododendron fictolacteum
Balf.f.; Trans. Bot. Soc. Edinburgh 27: 97 (1916)
Distribution: China (SW-Sichuan, NW-Yunnan); SE-Tibet; NE-Myanmar (Kachin)
36 CHI TIB 41 MYA
Synonyms: hidden
= Rhododendron fictolacteum var. miniforme Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 308, 170 (1989)
= Rhododendron lacteum var. macrophyllum Franch.; Bull. Soc. Bot. France 34: 280 (1887)
= Rhododendron rex subsp. fictolacteum (Balf.f.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 330 (1979)
species :
Rhododendron flammeum
(Michx.) Sarg.; Rhododendron Soc. Notes 1: 120 (1917)
Name: Piedmont azalea
Distribution: USA (Georgia, South Carolina)
78 USA
Remarks: Subgen. Pentanthera, Sect. Pentanthera
Synonyms: hidden
= Azalea calendulacea var. flammea Michx.; Fl. Bor.-Amer. (Michx.) 1: 151 (1803)
= Azalea coccinea (Aiton) Bosse; Vollst. Handb. Bl.-Gärtn. 1: 237 (1829)
= Azalea coccinea C.F.Ludw.; Neue Wilde Baumz. 7 (1783)
= Azalea nudiflora var. coccinea Aiton; Hort. Kew. 1: 202 (1789)
= Azalea nudiflora var. thyrsiflora Gowen ex Lindl.; Bot. Reg. 16: t. 1367 (1830)
= Azalea periclymenoides var. coccinea (Aiton) Pursh; Fl. Amer. Sept. 1: 202 (1813)
= Azalea speciosa var. coccinea (Aiton) DC.; Prodr. [A. P. de Candolle] 7: 717 (1839)
= Azalea speciosa Willd.; Enum. Pl. Suppl. [Willd.] 10 (1814)
= Rhododendron calendulaceum f. speciosum (Willd.) Voss; Vilm. Blumengärtn. ed. 3. 1: 588 (1894)
= Rhododendron calendulaceum var. flammeum (Michx.) Sweet; Hort. Brit., ed. 2: 343 (1830)
= Rhododendron luteum var. flammeum (Michx.) C.K.Schneid.; Ill. Handb. Laubholzk. 2: 500 (1911)
= Rhododendron nudiflorum var. coccineum (Aiton) Sweet; Hort. Brit., ed. 2: 343 (1830)
= Rhododendron speciosum (Willd.) Sweet; Hort. Brit. [Sweet], ed. 2. 343 (1830)
species :
Rhododendron flavantherum
Hutch. & Kingdon-Ward; Spec. Rhododendron, 786 (1930), et Notes Bot. Gard. Edinb. 16: 181 (1931), latine
Distribution: S-Tibet
36 TIB
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Monantha
species :
Rhododendron flavidum
Franch.; J. Bot. [Morot] 9: 395 (1895)
Distribution: China (W-Sichuan, NW-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Rhododendron primulinum Hemsl.; Gard. Chron. 47: 4 (1910)
variant :
var. psilostylum
Rehder & E.H.Wilson; Pl. Wils. 1: 513 (1913)
Distribution: China (NW-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron psilostylum (Rehder & E.H.Wilson) Balf.f.
species :
Rhododendron flavoflorum
T.L.Ming; Acta Bot. Yunnan. 6(2): 153-154, f. 3 (1984)
Distribution: China (SW-Yunnan)
36 CHI
species :
Rhododendron flavoviride
J.J.Sm.; Meded. Herb. Leid. No. 25, 4 (1915)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron fletcherianum
Davidian; R. H. S. Rhododendron & Camellia Year Book 16: 103 (1961)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron fleuryi
Dop ex A.Chev.; Rev. Bot. Appliq. 9: 255 (1929)
Distribution: C-Vietnam
41 VIE
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron floccigerum
Franch.; J. Bot. (Morot) 12(15-16): 259-260 (1898)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
species :
Rhododendron floribundum
Franch.; Bull. Soc. Bot. Fr. 33: 232 (1886); et in Nouv. Arch. Mus. Paris, Ser. 2(10): 49 (1887 publ. 1888)
Distribution: China (SW-Sichuan, W-Guizhou, NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
species :
Rhododendron flosculum
W.P.Fang & G.Z.Li; Bull. Bot. Res., Harbin 4(1): 4-6, photo. 4 (1984)
Distribution: China (S-Sichuan)
36 CHI
species :
Rhododendron flumineum
W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 91-92, pl. 8 (1982)
Distribution: China (S-Yunnan)
36 CHI
Synonyms: hidden
= Rhododendron mariae subsp. flumineum (W.P.Fang & M.Y.He) X.F.Jin & B.Y.Ding; Nordic J. Bot. 27(3): 197 (2009)
species :
Rhododendron formosanum
Hemsl.; Bull. Misc. Inform. Kew 1895(104): 183 (1895)
Distribution: S-Taiwan
38 TAI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
species :
Rhododendron formosum
Wall.; Pl. Asiat. Rar. [Wallich] 3: 3. t. 207 (1831)
Distribution: NE-India (Arunachal Pradesh, Meghalaya); Myanmar (Kachin, Mon)
40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
Synonyms: hidden
= Azalea formosa (Wall.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron assamicum Anon.; Gard. Chron., n. s. 15: 8 (1881)
= Rhododendron formosum var. salicifolium C.B.Clarke; Hook.f., Fl. Brit. India [J. D. Hooker] 3: 473 (1882)
= Rhododendron gibsonii Paxton; Mag. Bot. 8: t. 217 (1841)
= Rhododendron iteophyllum Hutch.; Notes Roy. Bot. Gard. Edinburgh 12: 83 (1919)
species :
Rhododendron forrestii
Balf.f. ex Diels; Notes Roy. Bot. Gard. Edinburgh 5(25): 211 (1912), et ex Balf.f., Notes Roy. Bot. Gard. Edinburgh 11: 121 (1919), descr. emend.
subspecies :
subsp. forrestii
Distribution: Slovakia [I]; China (NW-Yunnan); SE-Tibet; NE-India (Arunachal Pradesh); NE-Myanmar (Kachin)
11 slo 36 CHI TIB 40 IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
Synonyms: hidden
= Rhododendron forrestii var. repens (Balf.f. & Forrest) Cowan & Davidian; Rhododendron Year Book 6: 69 (1951)
= Rhododendron repens Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 115-120 (1919)
= Rhododendron forrestii var. tumescens Cowan & Davidian; Rhododendron Year Book 6: 69 (1951)
subspecies :
subsp. papillatum
D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 338 (1979)
Distribution: SE-Tibet
36 TIB
species :
Rhododendron fortunans
J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 3, 1: 401 (1920)
Distribution: C-Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron fortunei
T.Moore ex Lindl.; Gard. Chron. 868 (1859)
Distribution: China (Shaanxi, Hubei, Hunan, Henan, Anhui, Zhejiang, Jiangxi, Fujian, Guangdong, Guangxi, Sichuan, Guizhou, NE-Yunnan); Myanmar (Kachin); Vietnam
36 CHI 41 MYA VIE
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
Synonyms: hidden
= Azalea fortunei (Lindl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron albicaule H.Lév.; Repert. Spec. Nov. Regni Veg. 13(355-358): 148 (1914)
= Rhododendron kirkii Millais; Rhododendrons 169 (1917), pro syn.
species :
Rhododendron fragariflorum
Kingdon-Ward; Gard. Chron., Ser. 3, 86: 504 (1929), et ex Hutch. in Notes Bot. Gard. Edinb. 16: 179 (1931)
Distribution: SE-Tibet; Bhutan
36 TIB 40 BHU
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Fragariiflora
species :
Rhododendron frey-wysslingii
J.J.Sm.; Contr. Arnold Arbor. 8: 123 (1934)
Distribution: N-Sumatra
42 SUM
Remarks: Subgen. Rhododendron
species :
Rhododendron fuchsiifolium
H.Lév.; Repert. Spec. Nov. Regni Veg. 13(355-358): 148 (1914)
Distribution: China (Guangdong, Guangxi, S-Guizhou)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron tenue Ching ex W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 87 (1982)
species :
Rhododendron fulgens
Hook.f.; Rhododendron Sikkim Himalaya 27, t. 25 (1849)
Distribution: S-Tibet; Nepal; Bhutan; N-India (Arunachal Pradesh, Darjeeling, Sikkim, Chumbi); Myanmar (Kachin)
36 TIB 40 BHU IND NEP 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fulgensia
Synonyms: hidden
= Azalea fulgens (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron fulvum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10(47-48): 110-112 (1917)
subspecies :
subsp. fulvum
Distribution: China (W-Yunnan); NE-Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fulva
subspecies :
subsp. fulvoides
(Balf.f. & Forrest) D.F.Chamb.; R. H. S. Rhododendron Handb. 1998: 350 (1998)
Distribution: China (SW-Sichuan, W-Yunnan); SE-Tibet
36 CHI TIB
Synonyms: hidden
= Rhododendron fulvoides Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12(57-58): 112-115 (1920)
species :
Rhododendron fuscipilum
M.Y.He; J. Sichuan Univ., Nat. Sci. Ed. 1984(1): 94, photo. 3 (1984)
Distribution: China (Guangxi)
36 CHI
species :
Rhododendron fuyuanense
Zheng H.Yang; Acta Phytotax. Sin. 35(2): 189, f. 2 (1997)
Distribution: China (E-Yunnan)
36 CHI
species :
Rhododendron galactinum
Balf.f. ex Tagg; Notes Roy. Bot. Gard. Edinburgh 15(72): 103-106 (1926)
Distribution: China (W-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Falconera
species :
Rhododendron gannanense
Z.C.Feng; Bull. Bot. Res., Harbin 12(2): 145-146, f. 1-4 (1992)
Distribution: China (S-Gansu)
36 CHI
species :
Rhododendron gardenia
Schltr.; Bot. Jahrb. Syst. 55: 158 (1918)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron gaultheriifolium
J.J.Sm.; Nova Guinea 18: 90 (1936)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
variant :
var. expositum
Sleumer; Reinwardtia 5: 56 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron gemmiferum
M.N.Philipson & Philipson; Notes Roy. Bot. Gard. Edinburgh 33(3): 493 (1975)
Distribution: China (NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora
species :
Rhododendron genestierianum
Forrest; Notes Bot. Gard. Edinb. 12: 122 (1920)
Distribution: China (W-Yunnan); SE-Tibet; Myanmar (Kachin, Chin, Sagaing)
36 CHI TIB 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Genesteriana
species :
Rhododendron gideonii
Argent; Folia Malaysiana 4(2): 104 (2003)
Distribution: Bismarck Arch.
43 BIS
species :
Rhododendron giulianettii
Lauterb.; K. Schum. & Lauterb. Nachtr. Fl. Deutsch. Südsee, 338 (1905)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron glabrifilum
J.J.Sm.; Nova Guinea 12: 134 (1914)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Synonyms: hidden
= Rhododendron macgregoriae var. glabrifilum (J.J.Sm.) Sleumer; Reinwardtia 5: 206 (1960)
= Rhododendron macgregoriae var. mayrii (J.J.Sm.) Sleumer; (1960)
= Rhododendron mayrii J.J.Sm.; Nova Guinea 18: 97 (1936)
= Rhododendron torricellense Schltr.; Bot. Jahrb. Syst. 55: 142 (1917)
species :
Rhododendron glabriflorum
J.J.Sm.; Meded Herb. Leid No. 25, 6 (1915)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron glanduliferum
Franch.; Bull. Soc. Bot. France 33: 231 (1886)
Distribution: China (NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
species :
Rhododendron glandulosum
(Standl. ex Small) Millais; Rhododendrons 173 (1917)
Distribution: Russian Far East (Kamchatka, Sakhalin); Japan; Alaska
31 RFE 38 JAP 70 ASK
Synonyms: hidden
= Rhododendron camtschaticum subsp. glandulosum (Standl. ex Small) Hultén; Kongl. Svenska Vetensk. Acad. Handl., ser. 3, 5(4): 15 (1930)
= Rhododendron camtschaticum subsp. glandulosum (Standl. ex Small) B.Boivin; Naturaliste Canad. 94: 630 (1967), isonym
= Rhododendron camtschaticum var. pumilum E.A.Busch; Fl. Sibir. Orient. Extremi 2: 35 (1915)
= Therorhodion camtschaticum var. barbatum Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 42 (1927)
= Therorhodion camtschaticum var. pumilum (E.A.Busch) T.Yamaz.; Fl. Japan, 3a: 11 (1993)
= Therorhodion glandulosum Standl. ex Small; Britton et al. (eds.), N. Amer. Fl. 29: 45 (1914)
species :
Rhododendron glaucophyllum
Rehder; J. Arnold Arbor. 26: 73 (1945)
Distribution: Nepal; Bhutan; N-India (Sikkim)
40 BHU IND NEP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Glauca
Synonyms: hidden
= Azalea glauca (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron glaucophyllum var. album Davidian; J. Amer. Rhododendron Soc. 36: 16 (1982)
= Rhododendron glaucum Hook.f.; Rhododendr. Sikkim-Himalaya 2: t. 17 (1851), nom. illeg.
species :
Rhododendron glischroides
Tagg & Forrest; Spec. Rhododendron, 137 (1930), et Notes Bot. Gard. Edinb. 16: 194 (1931), latine
Distribution: Myanmar (Kachin)
41 MYA
Synonyms: hidden
= Rhododendron glischroides var. arachnoideum Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16: 196 (1931)
= Rhododendron glischrum subsp. glischroides (Tagg & Forrest) Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 117 (1978)
species :
Rhododendron glischrum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9: 229 (1916)
subspecies :
subsp. glischrum
Distribution: China (NW-Yunnan); S-Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Glischra
subspecies :
subsp. rude
(Tagg & Forrest) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 117 (1978)
Distribution: China (NW-Yunnan); SE-Tibet; NE-India (Arunachal Pradesh); Myanmar (Kachin)
36 CHI TIB 40 IND 41 MYA
Synonyms: hidden
= Rhododendron rude Tagg & Forrest; Spec. Rhododendron, 141 (1930), et Notes Roy. Bot. Gard. Edinburgh 16(79): 207-208 (1931), latine
species :
Rhododendron gologense
C.J.Xu & Z.J.Zhao; Flora lignosus Qinghaica Addenda 2 (1987)
Distribution: China (SE-Qinghai)
36 CHI
species :
Rhododendron gonggashanense
W.K.Hu; Bull. Bot. Res., Harbin 8(3): 55-56, pl. 5 (1988)
Distribution: China (W-Sichuan)
36 CHI
species :
Rhododendron gongshanense
T.L.Ming; Acta Bot. Yunnan. 6(2): 151-152, f. 2 (1984)
Distribution: China (NW-Yunnan)
36 CHI
species :
Rhododendron goodenoughii
Sleumer; Reinwardtia 5: 131 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron goyozanense
(M.Kikuchi) Craven; Blumea 56(1): 34 (2011)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Menziesia goyozanensis M.Kikuchi; J. Jap. Bot. 37: 355 (1962)
species :
Rhododendron gracilentum
F.Muell.; Trans. Roy. Soc. Vict. N. S. 1(2): 22 (1889)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron grande
Wight; Calcutta J. Nat. Hist. 8: 176 (1847)
Distribution: S-Tibet; Nepal; Bhutan; N-India (Darjeeling, Sikkim, Arunachal Pradesh, West Bengal)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Grandia
Synonyms: hidden
= Azalea grandis (Wight) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron argenteum Hook.f.; Rhododendron Sikkim Himalaya t. 9 (1849)
= Rhododendron grande var. singalense U.Rai, Lama, N.Thapa & Baraily; Pleione 8(1): 161 (2014)
= Rhododendron longiflorum Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 366 (1853)
= Rhododendron wilsonii Nutt. ex Hook.; Bot. Mag. 85: t. 5116 (1859)
= Waldemaria argentea (Hook.f.) Klotzsch; Bot. Ergeb. Waldem. Reise, 99 (1862)
species :
Rhododendron griersonianum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 11(52-53): 69-71 (1919)
Distribution: China (W-Yunnan); Myanmar
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Griersoniana
Synonyms: hidden
= Hymenanthes griersoniana (Balf.f. & Forrest) H.F.Copel.; Amer. Midl. Naturalist 30: 614 (1943)
species :
Rhododendron griffithianum
Wight; Icon. Pl. Ind. Orient. 4: 6, t. 1203 (1851)
Distribution: S-Tibet; W-Nepal; Bhutan; N-India (Sikkim, Darjeeling, Arunachal Pradesh)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
Synonyms: hidden
= Azalea griffithiana (Wight) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron aucklandii Hook.f.; Rhododendron Sikkim Himalaya t. 11 (1851)
= Rhododendron griffithianum var. aucklandii (Hook.f.) Hook.; Bot. Mag. 84: t. 5065 (1858)
= Rhododendron oblongum Griff.; Icon. Pl. Asiat. t. 523 (1854)
species :
Rhododendron groenlandicum
(Oeder) Kron & Judd; Syst. Bot. 15(1): 67 (1990)
Name: Bog Labrador tea (EN), Grönländischer Porst (DE)
Distribution: England [I]; Germany [I]; Alaska; Greenland; Canada (Alberta, British Columbia, Labrador, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Northern Territories, Nunavut, Ontario, Prince Edward Isl., Québec, Saskatchewan, Yukon); St. Pierre et Miquelon; USA (Connecticut, Idaho, Massachusetts, Maine, Michigan, Minnesota, North Dakota, New Hampshire, New Jersey, New York, Ohio, Oregon, Pennsylvania, South Dakota, Vermont, Washington State, Wisconsin)
10 grb 11 ger 70 ASK CDN GNL 71 CDN 72 CDN SPM 73 USA 74 USA 75 USA
Synonyms: hidden
= Ledum canadense G.Lodd.; Bot. Cab. 11: t. 1049 (1826)
= Ledum groenlandicum f. compactum (Bean) Rehder; Bibliogr. Cult. Trees 504 (1949)
= Ledum groenlandicum Oeder; Fl. Dan. 4: Fasc. 10, 5 (1771)
= Ledum groenlandicum var. aridiphilum D.Löve; Taxon 17: 89 (1968)
= Ledum groenlandicum var. compactum (Bean) Rehder; Man. Cult. Trees 679 (1927)
= Ledum latifolium Jacq.; Collectanea 2: 308 (1789), nom. illeg.
= Ledum latifolium var. canadense (G.Lodd.) DC.; Prodr. [A. P. de Candolle] 7: 730 (1839)
= Ledum latifolium var. compactum Bean; Trees & Shrubs Brit. Isles 2: 13 (1914)
= Ledum latifolium var. palustre Alph.Wood; Class-book Bot. 237 (1845)
= Ledum pacificum Small; Britton et al. (eds.), N. Amer. Fl. 29: 37 (1914)
= Ledum palustre Michx.; Fl. Bor. Amer. 1: 259 (1803), non L.
= Ledum palustre subsp. groenlandicum (Oeder) Hultén; Acta Univ. Lund., ser. 2, 44(1): 1219 (1948)
= Ledum palustre var. groenlandicum (Oeder) Rosenv.; Meddel. Grønland 3: 292 (1892)
= Ledum palustre var. latifolium (Jacq.) Hook.; Fl. Bor.-Amer. (Hook.) 2: 44 (1834)
species :
Rhododendron guangnanense
R.C.Fang; Acta Bot. Yunnan. 4(3): 254 (1982)
Distribution: China (SE-Yunnan)
36 CHI
species :
Rhododendron guanwuense
S.S.Ying; New Taxa New Names 7: 290 (2024)
Distribution: Taiwan
38 TAI
Remarks: provisionally accepted name
species :
Rhododendron guihainianum
G.Z.Li; Guihaia 15(4): 299-300, f. 3 (1995)
Distribution: China (E-Guangxi)
36 CHI
species :
Rhododendron guizhongense
G.Z.Li; Guihaia 15(3): 198 (1995), nom. nov.
Distribution: China (W-Hunan, N-Guangxi, E-Guizhou)
36 CHI
Synonyms: hidden
= Rhododendron glandulostylum W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 84-85, pl. 3 (1982) (not Komatsu (1918)
species :
Rhododendron guizhouense
M.Y.Fang; Proc. Fourth Intern. Rhodod. Conf. 58 (1988), et Acta Phytotax. Sin. 30(6): 555 (1992)
Distribution: China (N-Guangxi, E-Guizhou, W-Hunan)
36 CHI
species :
Rhododendron gumineense
Craven; J. Adelaide Bot. Gard. 27(4): 31 (2014)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
species :
Rhododendron habbemae
Koord.; Nova Guinea 8: 877 (1912)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron bodenii Wernham; Trans. Linn. Soc. London, Bot. 9: 94 (1916)
species :
Rhododendron habrotrichum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 232-233 (1916)
Distribution: China (W-Yunnan); NE-Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Glischra
species :
Rhododendron haematodes
Franch.; Bull. Soc. Bot. France 33: 232 (1886)
subspecies :
subsp. haematodes
Distribution: China (W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Neriiflora
Synonyms: hidden
= Azalea haematodes (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron haematodes var. calycinum Franch.; Bull. Soc. Bot. France 34: 280 (1887)
= Rhododendron haematodes var. hypoleucum Franch.; Bull. Soc. Bot. France 34: 280 (1887)
subspecies :
subsp. chaetomallum
(Balf.f. & Forrest in Balf.Balf.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 333 (1979)
Distribution: China (NW-Yunnan); SE-Tibet; NE-India; Myanmar (Kachin)
36 CHI TIB 40 IND 41 MYA
Synonyms: hidden
= Rhododendron chaetomallum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12: 95 (1920)
= Rhododendron chaetomallum var. chamaephytum Cowan; Notes Roy. Bot. Gard. Edinburgh 19: 146 (1936)
= Rhododendron chaetomallum var. glaucescens Tagg & Forrest; Notes Roy. Bot. Gard. Edinburgh 16: 189 (1931)
= Rhododendron hillieri Davidian; Rhododendrons Magnolias Camellias 1974: 47 (1974)
species :
Rhododendron haematophthalmum
Sleumer; Reinwardtia 5: 89 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron hainanense
Merr.; Philipp. J. Sci. 21(4): 350 (1922)
Distribution: China (S-Guangxi, Hainan); Vietnam
36 CHI 41 VIE
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron hameliiflorum
Wernham; Trans. Linn. Soc. London, Bot. 9: 98 (1916)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron hanceanum
Hemsl.; J. Linn. Soc. 26: 24 (1889)
Distribution: China (C-Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Tephropepla
Synonyms: hidden
= Azalea hanceana (Hemsl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron willmottiae Anon.; Gard. Chron., Ser. 3, 55: 319 (1914)
species :
Rhododendron hancockii
Hemsl.; Bull. Misc. Inform. Kew 1895(100-101): 107 (1895)
Distribution: China (SE-Yunnan, Guangxi)
36 CHI
Remarks: Subgen. Azaleastrum, Sect. Choniastrum
variant :
var. longisepalum
R.C.Fang & C.H.Yang; Acta Bot. Yunnan. 23: 294 (2001)
Distribution: China (SE-Yunnan)
36 CHI
species :
Rhododendron haofui
Chun & W.P.Fang; Acta Phytotax. Sin. 6(2): 169-170, pl. 41, f. 1 (1957)
Distribution: China (N-Guangxi, Guizhou, S-Hunan, SW-Jiangxi, E-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
species :
Rhododendron hartleyi
Sleumer; Blumea 21(2): 366 (1973)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron hatamense
Becc.; Malesia 1: 202 (1878)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron coenenii J.J.Sm.; Nova Guinea 12: 132 (1914)
= Rhododendron gibbsiae J.J.Sm.; Gibbs, Phytogeogr. & Fl. Arfak Mts. 169 (1917)
species :
Rhododendron heatherae
Rushforth; New Plantsman 8(4): 248 (2001)
Distribution: Tibet
36 TIB
species :
Rhododendron heizhugouense
M.Y.He & L.C.Hu; Acta Bot. Yunnan. 18(3): 295-296, f. 1 (1996)
Distribution: China (Sichuan)
36 CHI
species :
Rhododendron heliolepis
Franch.; Bull. Soc. Bot. Fr. xxxiv 283 (1887)
Distribution: China (Sichuan, Yunnan); Tibet; Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Heliolepida
Synonyms: hidden
= Azalea heliolepis (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron brevistylum Franch.; J. de Bot., 261 (1898)
= Rhododendron heliolepis var. brevistylum (Franch.) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 110 (1978)
= Rhododendron pholidotum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10: 132 (1917)
= Rhododendron plebeium Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10: 136 (1917)
= Rhododendron porrosquameum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 57 (1920)
variant :
var. fumidum
(Balf.f. & W.W.Sm.) R.C.Fang; Acta Bot. Yunnan. 4(3): 253 (1982)
Distribution: China (NE-Yunnan)
36 CHI
Synonyms: hidden
= Rhododendron fumidum Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 10: 112 (1917)
variant :
var. oporinum
(Balf.f. & Kingdon-Ward) A.L.Chang; Acta Bot. Yunnan. 4(3): 253 (1982)
Distribution: China (Yunnan); Myanmar (Kachin)
36 CHI 41 MYA
Synonyms: hidden
= Rhododendron oporinum Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 10: 129 (1917)
species :
Rhododendron hellwigii
Warb.; Bot. Jahrb. Syst. 16: 5, 26 (1892)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron helodes
Sleumer; Reinwardtia 5: 161 (1960)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron hemitrichotum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12: 115 (1920)
Distribution: China (Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Scabrifolia
species :
Rhododendron hemsleyanum
E.H.Wilson; Bull. Misc. Inform. Kew 1910(4): 109-110 (1910)
Distribution: China (SW-Sichuan: Emei Shan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
variant :
var. chengianum
(D.Fang) W.P.Fang ex W.K.Hu; Fl. Reipubl. Popularis Sin. 57(2): 30 (1994)
Distribution: China (SW-Sichuan: Emei Shan)
36 CHI
Synonyms: hidden
= Rhododendron chengianum D.Fang; Icon. Pl. Omeiesium 1(1): t. 31 (1942)
species :
Rhododendron henanense
W.P.Fang; Acta Phytotax. Sin. 21(4): 457-459, f. 2 (1983)
subspecies :
subsp. henanense
Distribution: China (N-Henan)
36 CHI
subspecies :
subsp. lingbaoense
W.P.Fang; Acta Phytotax. Sin. 21(4): 459, f. 3 (1983)
Distribution: China (W-Henan)
36 CHI
species :
Rhododendron henryi
Hance; J. Bot. 19(224): 243 (1881)
Distribution: China (Fujian, Guangdong, Guangxi, Jiangxi, Zhejiang); Taiwan
36 CHI 38 TAI
Remarks: Subgen. Azaleastrum, Sect. Choniastrum
Synonyms: hidden
= Azalea henryi (Hance) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron ciliatopedicellatum Hayata; Icon. Pl. Formosan. 3: 131-132 (1913)
= Rhododendron shiwandashanense P.C.Tam; Guihaia 3(3): 184, f. 6 (1983)
variant :
var. dunnii
(E.H.Wilson) M.Y.He; Fl. Reipubl. Popularis Sin. 57(2): 365 (1995)
Distribution: China (Fujian, Guangdong, Guangxi, Jiangxi, Zhejiang)
36 CHI
Synonyms: hidden
= Rhododendron dunnii E.H.Wilson; J. Arnold Arbor. 6(3): 170-171 (1925)
species :
Rhododendron herzogii
Warb.; Bot. Jahrb. Syst. 16: 15, 25 (1892)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
variant :
var. occidentale
Argent; Rhododendrons subgen. Vireya, ed. 2. 73 (2015)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron heteroclitum
H.P.Yang; Bull. Bot. Res. North-East. Forest. Inst. 9(1): 17 (1989)
Distribution: China (W-Sichuan)
36 CHI
species :
Rhododendron heterolepis
Danet; Adansonia 32(1): 136 (2010)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron himantodes
Sleumer; Bot. Jahrb. Syst. 71: 145 (1940)
Distribution: NE-Borneo
42 BOR
Remarks: Subgen. Rhododendron
variant :
var. lavandulifolium
Sleumer; Reinwardtia 5: 97 (1960)
Distribution: E-Borneo
42 BOR
species :
Rhododendron hippophaeoides
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9: 236 (1916)
Distribution: China (Yunnan, Sichuan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Rhododendron fimbriatum Hutch.; Gard. Chron., Ser. 3, 111: 438 (1932)
variant :
var. occidentale
M.N.Philipson & Philipson; Notes Roy. Bot. Gard. Edinburgh. 34(1): 20 (1975)
Distribution: China (Yunnan)
36 CHI
species :
Rhododendron hirsutipetiolatum
R.C.Fang & A.L.Zhang; Notes Roy. Bot. Gard. Edinburgh 41(1): 162 (1983)
Distribution: China (Yunnan)
36 CHI
species :
Rhododendron hirsutum
L.; Sp. Pl. 392 (1753)
Name: Bewimperte Alpenrose, Behaarte Alpenrose (DE)
Distribution: Germany (Bayern); Switzerland; Liechtenstein; Austria; Slovakia; France; Italy; Slovenia; Croatia; Bosnia & Hercegovina
11 AUT GER LIE SLO SWI 12 FRA 13 BIH CRO ITA SLV
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Rhododendron
Synonyms: hidden
= Azalea hirsuta (L.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Chamaerhododendron hirsutum (L.) Bubani; Fl. Pyren. [Bubani] 2: 18 (1900)
= Rhododendron angustifolium Hoppe; Flora (Regensburg) 20: 185, 205 (1837)
= Rhododendron germanicum Hoppe; Flora (Regensburg) 20: 187 (1837)
= Rhododendron germanicum var. hirsutum (L.) Hoppe; Flora (Regensburg) 20: 188 (1837), nom. illeg.
= Rhododendron glabratum Hoppe; Flora (Regensburg) 20: 185 (1837)
= Rhododendron hirsutum f. albiflorum (Goiran) Braun-Blanq.; 1638 (1926)
= Rhododendron hirsutum f. album Schinz & R.Keller; Fl. Schweiz, ed. 2: 169 (1905)
= Rhododendron hirsutum f. dryadifolium (Murr) Braun-Blanq.; Ill. Fl. Mitt.-Eur. 5: 1628 (1926)
= Rhododendron hirsutum f. glabratum (Asch. & Kuhn) Zabel; Beissn. et al., Handb. Laubholzben. [Beissner et al.] 375 (1903)
= Rhododendron hirsutum f. laciniatum (Schröt.) Braun-Blanq.; Ill. Fl. Mitt.-Eur. 5: 1628 (1926)
= Rhododendron hirsutum f. latifolium (Hoppe) Braun-Blanq.; 1638 (1926)
= Rhododendron hirsutum f. latifolium (Hoppe) Zabel; Beissn. et al., Handb. Laubholzben. [Beissner et al.] 375 (1903)
= Rhododendron hirsutum f. microphyllum (Briq.) Bolzon; Nuovo Giorn. Bot. Ital. n. s. 21: 193 (1914)
= Rhododendron hirsutum f. microphyllum (Briq.) Braun-Blanq.; 1638 (1926)
= Rhododendron hirsutum f. nanum Bolzon; Nuovo Giorn. Bot. Ital. n. s. 21: 192 (1914)
= Rhododendron hirsutum f. variegatum (G.Don) Rehder; Bibliogr. Cult. Trees 510 (1949)
= Rhododendron hirsutum lusus laciniatum Schröt.; Ber. Schweiz. Bot. Ges. 13: 130 (1903)
= Rhododendron hirsutum var. albiflorum (Goiran) Schröt.; Ber. Schweiz. Bot. Ges. 13: 130 (1903)
= Rhododendron hirsutum var. ciliatum Braun-Blanq.; Ill. Fl. Mitt.-Eur. 5: 1628 (1926)
= Rhododendron hirsutum var. dryadifolium Murr; Deutsche Bot. Monatsschr. 15: 201 (1897)
= Rhododendron hirsutum var. fallax Bornm.; Mitt. Thüring. Bot. Vereins N. F. 36: 48 (1925)
= Rhododendron hirsutum var. glabratum Asch. & Kuhn; Oesterr. Bot. Z. 14: 301 (1864)
= Rhododendron hirsutum var. hispidissimum Schröt.; Ber. Schweiz. Bot. Ges. 14: 66 (1905)
= Rhododendron hirsutum var. laciniatum (Schröt.) Bean; Trees & Shrubs Brit. Isles 2: 360 (1914)
= Rhododendron hirsutum var. lasiopus Brügger ex Schröd.; Pflanzenleben Alp. 113 (1904)
= Rhododendron hirsutum var. latifolium Hoppe; Flora (Regensburg) 5: 525 (1822)
= Rhododendron hirsutum var. microphyllum Briq.; Bull. Lab. Bot. Gén. Univ. Genève 1: 482 (1897)
= Rhododendron hirsutum var. parvifolium L.Keller; Verh. K. K. Zool.-Bot. Ges. Wien 49: 377 (1899)
= Rhododendron hirsutum var. variegatum G.Don; Gen. Hist. 3: 844 (1834)
= Rhododendron intermedium Schur; Enum. Pl. Transsilv. 448 (1866), nom. illeg.
= Rhododendron latifolium Hoppe; Flora (Regensburg) 23: 525 (1840), nom. illeg.
species :
Rhododendron hirtipes
Tagg; Spec. Rhododendron 40 (1930)
Distribution: SE-Tibet
36 TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Selensia. Status doubtful, not listed in Fl. of China
Synonyms: hidden
= Rhododendron xizangense W.P.Fang & W.K.Hu; Bull. Bot. Res., Harbin 6(1): 167-168 (1986)
species :
Rhododendron hirtolepidotum
J.J.Sm.; Nova Guinea 12: 135 (1914)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron hodgsonii
Hook.f.; Rhododendron Sikkim Himalaya 16, t. 15 (1851)
Distribution: S-Tibet; Nepal; Bhutan; N-India (Arunachal Pradesh, West Bengal, Darjeeling, Sikkim, Chumbi); Myanmar (Kachin)
36 TIB 40 BHU IND NEP 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Falconera
Synonyms: hidden
= Azalea hodgsonii (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron hodgsonii var. album D.Bhattach.; Fasc. Fl. India 25: 118 (2014)
species :
Rhododendron hoi
W.P.Fang; Acta Sci. Nat. Univ. Szechuan. 1957(2): 216 (1957)
Distribution: China (NC-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron anthopogonoides subsp. hoi (W.P.Fang) W.P.Fang & Xiong; Acta Phytotax. Sin. 21(4): 466 (1983)
species :
Rhododendron hongkongense
Hutch.; Spec. Rhododendron 562 (1930)
Distribution: China (Guangdong)
36 CHI
Remarks: Subgen. Azaleastrum, Sect. Azaleastrum
Synonyms: hidden
= Azalea myrtifolia Champ.; Hook. Bot. Mag. 77: sub t. 4609 (1851) (not Rhododendron myrtifolium Lodd. (1824), nor Schott & Kotschy (1851)
species :
Rhododendron hooglandii
Sleumer; Reinwardtia 5: 75 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron hookeri
Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 359 (1853)
Distribution: SE-Tibet; Nepal; NE-India (Arunachal Pradesh)
36 TIB 40 IND NEP
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
Synonyms: hidden
= Azalea hookeri (Nutt.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
species :
Rhododendron horlickianum
Davidian; Rhododendrons (London), 1972: 53 (1972)
Distribution: Myanmar (Kachin)
41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron huadingense
B.Y.Ding & Y.Y.Fang; Bull. Bot. Res., Harbin 10(1): 31-32, f. 1 (1990), et Taxon 54(3): 804 (2005)
Distribution: China (Zhejiang)
36 CHI
species :
Rhododendron huangpingense
Xiang Chen & Jia Y.Huang; Novon 20(4): 386 (2010)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron huanshanense
S.S.Ying; New Taxa New Names 4: 149 (2022)
Distribution: Taiwan
38 TAI
Remarks: provisionally accepted name
species :
Rhododendron huanum
W.P.Fang; Contr. Biol. Lab. Chin. Assoc. Advancem. Sci., Sect. Bot. 12: 38 (1939) ("huianum")
Distribution: China (Chongqing, NE-Guizhou, Sichuan, NE-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Fortunea
species :
Rhododendron huguangense
P.C.Tam; Bull. Bot. Res., Harbin 2(1): 98-99, f. 2 (1982)
Distribution: China (Guangdong, E-Guangxi, S-Hunan)
36 CHI
Synonyms: hidden
= Rhododendron hukwangense P.C.Tam; Survey Genus Rhododendron S. China 76, f. 12 (1983), orth. var.
species :
Rhododendron huidongense
T.L.Ming; Acta Bot. Yunnan. 3(1): 115-117, f. 1, 6-10 (1981)
Distribution: China (SW-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Parishia
species :
Rhododendron hunanense
Chun ex P.C.Tam; Bull. Bot. Res., Harbin 2(1): 92-93 (1982)
Distribution: China (S-Hunan, E-Jiangxi)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron hunanense var. mangshanicum P.C.Tam; Bull. Bot. Res. North-East. Forest. Inst. 2(1): 93 (1982)
species :
Rhododendron hunnewellianum
Rehder & E.H.Wilson; Pl. Wilson. 1(3): 535 (1913)
subspecies :
subsp. hunnewellianum
Distribution: China (NW-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
Synonyms: hidden
= Rhododendron leucolasium Diels; Repert. Spec. Nov. Regni Veg. 17(486-491): 196 (1921)
subspecies :
subsp. rockii
(E.H.Wilson) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 329 (1979)
Distribution: China (S-Gansu, N-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron rockii E.H.Wilson; J. Arnold Arbor. 9(2-3): 103-104 (1928)
species :
Rhododendron hyacinthosmum
Sleumer; Blumea 21(2): 363 (1973)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron hylaeum
Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 265 (1922)
Distribution: China (NW-Yunnan); SE-Tibet; NE-Myanmar (Kachin)
36 CHI TIB 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Thomsonia
species :
Rhododendron hyperythrum
Hayata; Icon. Pl. Formosan. 3: 133-134 (1913)
Distribution: NC-Taiwan
38 TAI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Pontica
Synonyms: hidden
= Rhododendron rubropunctatum Hayata; Icon. Pl. Formosan. 3: 141-142 (1913), not H. Lév. & Vaniot (1911), nor T. L. Ming (1984)
species :
Rhododendron hypoglaucum
Hemsl.; J. Linn. Soc., Bot. 26(173): 25 (1889)
Distribution: China (Chongqing, W-Hubei, S-Shaanxi, E-Sichuan)
36 CHI
Synonyms: hidden
= Azalea hypoglauca (Hemsl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron argyrophyllum subsp. hypoglaucum (Hemsl.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 37(2): 329 (1979)
= Rhododendron gracilipes Franch.; J. Bot. (Morot) 9(21): 391 (1895)
species :
Rhododendron hypoleucophyllum
Makino; Enum. Spermatophytarum Japon. 1: 33 (1941)
Distribution: Japan
38 JAP
Remarks: provisionally accepted name
species :
Rhododendron hypoleucum
(Kom.) Harmaja; Ann. Bot. Fenn. 27(2): 203 (1990)
Distribution: Russian Far East (Amur, Khabarovsk, Kuril Isl., Primorye, Sakhalin); Japan (Hokkaido)
31 RFE 38 JAP
Synonyms: hidden
= Ledum hypoleucum Kom.; Izv. Imp. Bot. Sada Petra Velikago 16: 175 (1916)
species :
Rhododendron hyugaense
(T.Yamaz.) T.Yamaz.; J. Jap. Bot. 62(3): 72 (1987)
Distribution: Japan (Kyushu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Rhododendron hyugaense f. albiflorum Hatus. ex Minamit.; J. Jap. Bot. 94(4): 220 (2019)
= Rhododendron viscistylum var. hyugaense T.Yamaz.; J. Jap. Bot. 59(7): 208 (1984)
species :
Rhododendron igneum
Cowan; Notes Bot. Gard. Edinb. 19: 235 (1937)
Distribution: SE-Tibet
36 TIB
species :
Rhododendron impeditum
Balf.f. & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 9: 239 (1916)
Distribution: China (SW-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Rhododendron litangense Balf.f. ex Hutch.; Notes Bot. Gard. Edinb. 17: 27 (1929)
species :
Rhododendron impositum
J.J.Sm.; Bot. Jahrb. Syst. 68: 201 (1937)
Distribution: SW-Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
species :
Rhododendron impressopunctatum
J.J.Sm.; Repert. Spec. Nov. Regni Veg. 30: 164 (1932)
Distribution: Moluccas (Buru Isl.)
42 MOL
Remarks: Subgen. Rhododendron
species :
Rhododendron inaequale
(C.B.Clarke) Hutch.; Notes Roy. Bot. Gard. Edinburgh 12: 15, 75 (1919)
Distribution: NE-India (Arunachal Pradesh, Manipur, Meghalaya, Nagaland); Myanmar (Chin)
40 IND 41 MYA
Synonyms: hidden
= Rhododendron formosum var. inaequale C.B.Clarke; Hook.f., Fl. Brit. India [J. D. Hooker] 3: 473 (1882)
species :
Rhododendron incommodum
Sleumer; Reinwardtia 5: 70 (1960)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron inconspicuum
J.J.Sm.; Meded. Herb. Leid. No. 25, 1 (1915)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron invasorium Sleumer; Reinwardtia 5: 60 (1960)
= Rhododendron luteosquamatum Sleumer; Reinwardtia 5: 166 (1960)
species :
Rhododendron indicum
(L.) Sweet; Hort. Brit. (ed. 2) 343 (1833)
Distribution: S-Japan (Honshu, Kyushu); China [I]; South Korea [I]; Taiwan [I]; Myanmar [I]; Java [I]; Mexico [I]; Honduras [I]
36 chi 38 JAP kor tai 41 mya 42 jaw 79 mex 80 hon
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Azalea balsaminiflora Carrière; Rev. Hort. (Paris) 54: 432 (1882)
= Azalea burgeri Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 34 (1863)
= Azalea calycina Lem.; Jard. Fl. 3: t. 257 (1853)
= Azalea crispiflora Hook.; Bot. Mag. I. 4726 (1844)
= Azalea crispiflora var. rosea J.Dix; Proc. Roy. Hort. Soc. London 1: 479 (1861)
= Azalea danielsiana Paxton; Paxton´s Mag. Bot. 1: 129 (1834)
= Azalea decumbens (D.Don ex G.Don) DC.; Prodr. [A. P. de Candolle] 7: 718 (1839)
= Azalea indica L.; Sp. Pl. 150 (1753)
= Azalea indica var. angustifolia Blume; Bijdr. Fl. Ned. Ind. 852 (1826)
= Azalea indica var. balsaminiflora (Carrière) Kelsey & Dayton; Standard. Pl. Names, ed. 2: 32 (1942)
= Azalea indica var. bealei John Edwards; Natl. Gard. Almanack 1855: 312 (1855)
= Azalea indica var. coccinea (Reider) P.B.Mead; Young Churchman Misc. 3: 80 (1848)
= Azalea indica var. copii P.B.Mead; Young Churchman Misc. 3: 80 (1848)
= Azalea indica var. crispiflora (Hook.) Van Houtte; Fl. Serres Jard. Eur. 9: 79 (1854)
= Azalea indica var. crystallina Verschaff.; Nursery Cat. (Ambroise Verschaffelt) 79: 2 (1866)
= Azalea indica var. elegans P.B.Mead; Young Churchman Misc. 3: 80 (1848)
= Azalea indica var. floribunda Blume; Bijdr. Fl. Ned. Ind. 853 (1826)
= Azalea indica var. garibaldii Ivery; Proc. Roy. Hort. Soc. London 4: 98 (1864)
= Azalea indica var. lateritia Lindl.; Edwards´s Bot. Reg. 20: t. 1700 (1834)
= Azalea indica var. obtusa (Lindl.) Rehder; Bailey, Cycl. Amer. Hort. 1: 122 (1900)
= Azalea indica var. obtusa-alba (Anon.) Rehder; Bailey, Cycl. Amer. Hort. 1: 122 (1900)
= Azalea indica var. purpurea P.B.Mead; Young Churchman Misc. 3: 80 (1848)
= Azalea indica var. rosiflora (Dean) Rehder; Bailey, Cycl. Amer. Hort. 1: 122 (1900)
= Azalea indica var. sinensis Van Houtte; Fl. Serres 20: 151 (1874)
= Azalea indica var. spatulata Blume; Bijdr. Fl. Ned. Ind. 852 (1826)
= Azalea indica var. speciosa P.B.Mead; Young Churchman Misc. 3: 80 (1848)
= Azalea indica var. stella Veitch; Proc. Roy. Hort. Soc. London 4: 97 (1864)
= Azalea indica var. variagata Van Houtte; Hort. Belge 5: 306 (1838)
= Azalea indica var. versicolor Low; Proc. Roy. Hort. Soc. London 4: 98 (1864)
= Azalea indica virginalis J.J.Veitch; Cat. New Beautiful Pl. 1863: 9 (1863)
= Azalea lateritia (Lindl.) André; Belgique Hort. 15: 185 (1865)
= Azalea macrantha Bunge; Enum. Pl. Corea 41 (1833)
= Azalea obtusa Lindl.; J. Hort. Soc. London 1: 152 (1846)
= Azalea ramentacea Lindl.; J. Hort. Soc. 4: 291 (1849)
= Azalea rollissonii T.Moore; Florist & Pomol. 1878: 35 (1878)
= Azalea rosiflora Dean; Fl. Mag. (London), n. s., 1880: t. 418 (1880)
= Azalea thunbergii (Planch.) André; Belgique Hort. 15: 184 (1865)
= Enkianthus biflorus Lour.; Fl. Cochinch. 1: 277 (1790)
= Iposues obovata Raf.; Autik. Bot. 186 (1840)
= Loiseleria indica (L.) Rchb.; Fl. Germ. Excurs. 1: 416 (1831)
= Rhododendron austrokiusianum Hatus.; J. Jap. Bot. 24: 81 (1949)
= Rhododendron balsaminiflorum (Carrière) T.Moore; Florist & Pomol. 1883: 81 (1883)
= Rhododendron brachycarpum Zucc. ex Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 39 (1871), nom. illeg.
= Rhododendron buergeri Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 34 (1863)
= Rhododendron crispiflorum (Hook.) Planch.; Fl. Serres Jard. Eur. 9: 83 (1853)
= Rhododendron danielsianum Planch.; Fl. Serres Jard. Eur. 9: 79 (1854)
= Rhododendron decumbens D.Don ex G.Don; Gen. Hist. 3: 846 (1834)
= Rhododendron hangnoense Nakai; Bot. Mag. (Tokyo) 29: 261 (1915)
= Rhododendron hispidum D.Don; Edinburgh Philos. J. 6: 48 (1822)
= Rhododendron indicum f. balsaminiflorum (Carrière) Rehder; Bibliogr. Cult. Trees 514 (1949)
= Rhododendron indicum f. crispiflorum (Hook.) Rehder; Bibliogr. Cult. Trees 514 (1949)
= Rhododendron indicum f. laciniatum Makino; Bot. Mag. (Tokyo) 27: 110 (1910)
= Rhododendron indicum f. lateritium (Lindl.) Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 39 (1870)
= Rhododendron indicum f. otakumi T.Yamaz.; J. Jap. Bot. 41: 348 (1966)
= Rhododendron indicum obtusum-album Anon.; Gard. & Forest 9: 394 (1896)
= Rhododendron indicum subvar. lateritium (Lindl.) Makino; Bot. Mag. (Tokyo) 27: 110 (1910)
= Rhododendron indicum var. balsaminiflorum (Carrière) G.Nicholson; Hand-List Trees Shrubs 2: 53 (1896)
= Rhododendron indicum var. brachytrichum Komatsu; Bot. Mag. (Tokyo) 31: (18) (1918)
= Rhododendron indicum var. crispiflorum (Hook.) C.K.Schneid.; Ill. Handb. Laubholzk. 2: 506 (1911)
= Rhododendron indicum var. kirishima Millais; Rhododendrons 193 (1917)
= Rhododendron indicum var. lateritium (Lindl.) DC.; Prodr. [A. P. de Candolle] 7: 726 (1839)
= Rhododendron indicum var. macranthum (Bunge) Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 39 (1870)
= Rhododendron indicum var. obtusum (Lindl.) Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 40 (1870)
= Rhododendron indicum var. rollissonii (T.Moore) Millais; Rhododendrons 183 (1917)
= Rhododendron indicum var. rosiflorum (Dean) Rehder; Bailey, Stand. Cycl. Hort. 5: 2944 (1916)
= Rhododendron kiusianum var. sataense (Nakai) D.F.Chamb. & Rae; Edinburgh J. Bot. 47(2): 122 (1990)
= Rhododendron lateritium (Lindl.) Planch.; Fl. Serres Jard. Eur. 9: 80 (1853)
= Rhododendron lateritium var. brachytrichum Nakai; Bot. Mag. (Tokyo) 29: (261) (1915), nom. nud.
= Rhododendron macranthum (Bunge) G.Don; Gen. Hist. 3: 846 (1834)
= Rhododendron obtusum (Lindl.) Planch.; Fl. Serres Jard. Eur. 9: 80 (1853), nom. illeg.
= Rhododendron obtusum f. album (H.J.Veitch ex Mottet) C.K.Schneid.; Ill. Handb. Laubholzk. 2: 506 (1911)
= Rhododendron obtusum f. honkirishima Komatsu; Bot. Mag. (Tokyo) 32: (39) (1918)
= Rhododendron ramentaceum (Lindl.) Planch.; Fl. Serres Jard. Eur. 9: 81 (1853)
= Rhododendron sataense Nakai; Bull. Nat. Sci. Mus., Tokyo, No. 27, 33 (1949)
= Rhododendron sieboldii var. minor Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 33 (1863)
= Rhododendron sieboldii var. serrulatum Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 33 (1863)
= Rhododendron thunbergii Planch.; Fl. Serres Jard. Eur. 9: 78 (1853)
species :
Rhododendron insculptum
Kingdon-Ward; Gard. Chron., Ser. 3, 81: 251 (1927); Hutch. & Kingdon-Ward in Spec. Rhododendron, 821 (1930); Hutch. in Notes Bot. Gard. Edinb. 16: 182 (1931), latine
Distribution: Myanmar (Kachin)
41 MYA
species :
Rhododendron insigne
Hemsl. & E.H.Wilson; Bull. Misc. Inform. Kew 1910(4): 113 (1910)
Distribution: China (SW-Sichuan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Argyrophylla
variant :
var. hejiangense
(W.P.Fang) M.Y.Fang; Fl. Reipubl. Popularis Sin. 57(2): 152 (1995)
Distribution: China (S-Sichuan)
36 CHI
Synonyms: hidden
= Rhododendron argyrophyllum subsp. hejiangense W.P.Fang; Acta Phytotax. Sin. 21(4): 457, f. 1 (1983)
= Rhododendron insigne var. hejiangense (Fang) M.Y.Fang; Bull. Bot. Res. North-East. Forest. Inst. 12(3): 219 (1992)
species :
Rhododendron intranervatum
Sleumer; Blumea 11: 129 (1961)
Distribution: S-Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron intricatum
Franch.; J. Bot. [Morot] 9: 395 (1895)
Distribution: China (W-Sichuan, NW-Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Rhododendron blepharocalyx Franch.; J. Bot. (Morot) 9: 396 (1895)
= Rhododendron peramabile Hutch.; Gard. Chron. 1932, Ser. 3, 91: 366 (1932)
species :
Rhododendron invictum
Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 10: 116 (1917)
Distribution: China (S-Gansu)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Heliolepida
species :
Rhododendron irroratum
Franch.; Bull. Soc. Bot. France 34: 280 (1887)
subspecies :
subsp. irroratum
Distribution: China (NW-Guizhou, SW-Sichuan, N-Yunnan); Myanmar (Kachin, Sagaing)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
Synonyms: hidden
= Azalea irrorata (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron maximowiczianum H.Lév.; Bull. Soc. Agric. Sarthe 39: 47 (1903)
= Rhododendron ningyuenense Hand.-Mazz.; Akad. Wiss. Wien, Math.-Naturwiss. Kl., Anz. 57: 288 (1920)
subspecies :
subsp. kontumense
(Sleumer) Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 117 (1978)
Distribution: C-Vietnam
41 VIE
Synonyms: hidden
= Rhododendron kontumense Sleumer; Blumea, Suppl. 4, 54 (1958)
= Rhododendron langbianense A.Chev. ex Dop; Lecomte, Fl. Gen. Indo-Chine 3: 745 (1930)
subspecies :
subsp. pogonostylum
(Balf.f. & W.W.Sm.) D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 36(1): 117 (1978)
Distribution: China (W-Guizhou, SE-Yunnan); N-Vietnam
36 CHI 41 VIE
Synonyms: hidden
= Rhododendron adenostemomum Balf. & W.W.Sm.; Trans. Bot. Soc. Edin. 27: 174 (1917)
= Rhododendron pogonostylum Balf.f. & W.W.Sm.; Trans. Bot. Soc. Edinburgh 27(2): 210-214 (1917)
subspecies :
subsp. yiliangense
M.Rob. & McQuire ex N.Lancaster; Rhododendrons Magnolias Camellias 62: 119 (2011)
Distribution: China (Yunnan)
36 CHI
species :
Rhododendron japonicum
(A.Gray) Suringar; Gartenflora 57: 517 (1908)
Name: Japanese azalea
Distribution: Japan; USA [I] (Connecticut [I], New Jersey [I])
38 JAP 75 usa
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Pontica
Synonyms: hidden
= Azalea japonica A.Gray; Mem. Amer. Acad. N. S. 6: 400 (1858 publ. 1859)
= Azalea macrostemon (Maxim.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Azalea mollis var. glabrior (Miq.) Regel; Gartenflora 16: 289 (1867)
= Azalea sinensis var. glabrior (Miq.) Maxim.; Index Sem. (St. Petersburg [Petropolitanus]) 1868(Suppl.): 11 (1869 publ. 1870)
= Rhododendron japonicum f. aureum E.H.Wilson; Wils. & Rehd., Monogr. Azaleas 102 (1921)
= Rhododendron japonicum f. canescens Sugim.; J. Geobot. 22: 52 (1975)
= Rhododendron japonicum f. flavum (Miyoshi) Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 82 (1927)
= Rhododendron japonicum f. glaucophyllum (Nakai) H.Hara; Enum. Spermatophytarum Japon. 1: 36 (1948)
= Rhododendron japonicum f. multifidum Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 82 (1927)
= Rhododendron japonicum var. glaucophyllum Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 82 (1927)
= Rhododendron macrostemon Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 41 (1871)
= Rhododendron molle f. canescens (Sugim.) Yonek.; J. Jap. Bot. 80: 327 (2005)
= Rhododendron molle f. flavum (Miyoshi) Yonek.; J. Jap. Bot. 80: 327 (2005)
= Rhododendron molle f. glaucophyllum (Nakai) Yonek.; J. Jap. Bot. 80: 327 (2005)
= Rhododendron molle f. multifidum (Nakai) Yonek.; J. Jap. Bot. 80: 327 (2005)
= Rhododendron molle subsp. japonicum (A.Gray) Kron; Edinburgh J. Bot. 50(3): 279 (1993)
= Rhododendron molle var. glabrior Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 33 (1846)
= Rhododendron sinense f. flavum Miyoshi; Saishin Shokubutsugaku Kôgi 3: t. 32 (1921)
species :
Rhododendron japonoheptamerum
Kitam.; Acta Phytotax. Geobot. 38: 382 (1987), nom. nov.
Distribution: Japan (Honshu, Shikoku, Kyushu)
38 JAP
Synonyms: hidden
= Azalea japonica (Blume) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
= Hymenanthes japonica Blume; Bijdr. Fl. Ned. Ind. 862 (1826)
= Rhododendron degronianum subsp. heptamerum (Maxim.) H.Hara; J. Jap. Bot. 61(8): 246 (1986)
= Rhododendron degronianum var. heptamerum (Maxim.) Sealy ex Davidian; Rhododendron Species, 3 (Ser. Neriiflorum-Thomsonii, etc.): 161 (1992)
= Rhododendron hymenanthes Makino; Bot. Mag. (Tokyo) 16: 33 (1902)
= Rhododendron hymenanthes var. heptamerum (Maxim.) Makino; Bot. Mag. (Tokyo) 16: 33 (1902)
= Rhododendron japonicum (Blume) C.K.Schneid.; Ill. Handb. Laubholzk. 2: 490 (1909), nom. illeg.
= Rhododendron japonoheptamerum f. albiflorum (Takeda) T.Yamaz.; Fl. Japan 3a: 41 (1993)
= Rhododendron maximum Thunb.; Fl. Jap. 181 (1784), nom. illeg.
= Rhododendron metternichii f. albiflorum Takeda; Engei Dai-jiten 3: 1120 (1953)
= Rhododendron metternichii f. latifolium Sugim.; J. Geobot. 22(4): 53 (1975)
= Rhododendron metternichii Siebold & Zucc.; Fl. Jap. 1: 23 (1835), nom. superfl.
= Rhododendron metternichii var. heptamerum Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 21 (1870)
variant :
var. hondoense
(Nakai) Kitam.; Acta Phytotax. Geobot. 38: 382 (1987)
Distribution: Japan (Honshu, Shikoku)
38 JAP
Synonyms: hidden
= Rhododendron degronianum var. hondoense (Nakai) H.Hara; J. Jap. Bot. 61(8): 246 (1986)
= Rhododendron japonoheptamerum f. leucanthum (Nakai) T.Yamaz.; Fl. Japan 3a: 41 (1993)
= Rhododendron metternichii f. leucanthum Nakai; Nakai & G. Koidz., Trees Shrubs Japan, rev. ed. 65 (1927)
= Rhododendron metternichii var. hondoense Nakai; Bot. Mag. (Tokyo) 1924: 26 (1924)
variant :
var. kyomaruense
(T.Yamaz.) T.Yamaz.; Fl. Japan, 3a: 41 (1993)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron degronianum var. kyomaruense (T.Yamaz.) H.Hara; J. Jap. Bot. 61: 246 (1986)
= Rhododendron metternichii var. kyomaruense T.Yamaz.; J. Jap. Bot. 39: 17 (1964)
variant :
var. okiense
(T.Yamaz.) T.Yamaz.; Fl. Japan, 3a: 42 (1993)
Distribution: Japan (Oki Isl.)
38 JAP
Synonyms: hidden
= Rhododendron degronianum var. okiense T.Yamaz.; (1989)
= Rhododendron metternichii f. brevifolium Takeda; Engei Dai-jiten 3: 1120 (1951), nom. illeg.
species :
Rhododendron jasminiflorum
T.Moore & Ayres; Gard. Mag. Bot. 1: 251 (1850)
subspecies :
subsp. jasminiflorum
Distribution: peninsular Malaysia (Gunung Ledang, Johor, Kedah, Perak, Pahang)
42 MLY
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Azalea jasminiflora (Hook.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron elongatum Blume; Fl. Javae, Pl. Inéd., t. 7, f. 1 (1863-1883)
= Rhododendron jasminiflorum var. maculatum Ridl.; Fl. Malay Penins. 2: 218 (1923)
= Rhododendron jasminiflorum var. punctatum Ridl.; J. Fed. Malay States Mus. 4: 42 (1909)
subspecies :
subsp. chamaepitys
(Sleumer) Argent; Rhododendrons subgen. Vireya 158 (2006)
Distribution: Borneo
42 BOR
Synonyms: hidden
= Rhododendron chamaepitys Sleumer; Bot. Jahrb. Syst. 71: 144 (1940)
subspecies :
subsp. copelandii
(Merr.) Argent; Rhododendrons subgen. Vireya 159 (2006)
Distribution: Philippines (Mindanao)
42 PHI
Synonyms: hidden
= Rhododendron copelandii Merr.; Philipp. Gov. Lab. Bur. Bull. 29: 42 (1905)
= Rhododendron jasminiflorum var. copelandii (Merr.) Sleumer; Reinwardtia 5: 130 (1960)
subspecies :
subsp. heusseri
(J.J.Sm.) Argent; Rhododendrons subgen. Vireya 159 (2006)
Distribution: Sumatra
42 SUM
Synonyms: hidden
= Rhododendron jasminiflorum var. heusseri (J.J.Sm.) Sleumer; Reinwardtia 5: 129 (1960)
= Rhododendron longiflorum var. heusseri J.J.Sm.; Bull. Jard. Bot. Buitenzorg, sér. 3, 13: 447 (1935)
subspecies :
subsp. oblongifolium
(Sleumer) Argent; Rhododendrons subgen. Vireya 160 (2006)
Distribution: peninsular Malaysia (P. Tioman, Gunung Belumut, Johor); Borneo
42 BOR MLY
Synonyms: hidden
= Rhododendron jasminiflorum var. oblongifolium Sleumer; Reinwardtia 5: 130 (1960)
species :
Rhododendron jasminoides
M.Y.He; J. Sichuan Univ., Nat. Sci. Ed. 1984(1): 93, photo. 1 (1984)
Distribution: China (Guangxi)
36 CHI
species :
Rhododendron javanicum
(Blume) Benn.; Pl. Jav. Rar. 85. t. 19 (1823)
subspecies :
subsp. javanicum
Distribution: Sumatra (incl. Lingga Arch.); Borneo (Natuna Isl.); Java; Lesser Sunda Isl. (Bali)
42 BOR JAW LSI SUM
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Azalea javanica (Blume) Kuntze; Revis. Gen. Pl. 1: 387 (1891)
= Rhododendron javanicum var. gymnocarpum Hochr.; Candollea 2: 490 (1925)
= Vireya javanica Blume; Bijdr. Fl. Ned. Ind. 854 (1826)
subspecies :
subsp. argentii
Mambrasar, Warseno & Kusw.; Edinburgh J. Bot. 81-1962: 4 (2024)
Distribution: Lesser Sunda Isl. (Bali)
42 LSI
subspecies :
subsp. brookeanum
(H.Low ex Lindl.) Argent & Phillipps; Bot. J. Linn. Soc. 85: 15 (1982)
Distribution: Borneo
42 BOR
Synonyms: hidden
= Azalea brookeana (H.Low ex Lindl.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron brookeanum H.Low ex Lindl.; J. Hort. Soc. 3: 82 (1848)
= Rhododendron brookeanum var. flavum Veitch ex J.Dix; Proc. Roy. Hort. Soc. London 1: 165 (1860)
subspecies :
subsp. cladotrichum
(Sleumer) Argent; Rhododendrons subgen. Vireya 247 (2006)
Distribution: EC-Borneo
42 BOR
Synonyms: hidden
= Rhododendron cladotrichum (Sleumer) Craven; J. Adelaide Bot. Gard. 27(4): 28 (2014)
= Rhododendron brookeanum var. cladotrichum Sleumer; Reinwardtia 5: 224 (1960)
subspecies :
subsp. gracile
(H.Low ex Lindl.) Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42: 114 (1984)
Distribution: Borneo; Brunei
42 BOR BRN
Synonyms: hidden
= Rhododendron brookeanum subsp. gracile (H.Low ex Lindl.) Argent; Edinburgh J. Bot. 52(3): 364 (1995)
= Rhododendron gracile H.Low ex Lindl.; J. Hort. Soc. 3: 84 (1848)
= Rhododendron javanicum var. gracile (H.Low ex Lindl.) Sleumer
= Rhododendron obscurinervium Merr.; J. Straits Branch Roy. Asiat. Soc. 76: 109 (1917)
subspecies :
subsp. kinabaluense
(Argent, A.Lamb & Phillipps) Argent; Rhododendrons subgen. Vireya 248 (2006)
Distribution: Borneo (Sabah)
42 BOR
Synonyms: hidden
= Rhododendron brookeanum var. kinabaluense (Argent, A.Lamb & Phillipps) Argent; Edinburgh J. Bot. 52: 363 (1995)
= Rhododendron javanicum var. kinabaluense Argent, A.Lamb & Phillipps; Notes Roy. Bot. Gard. Edinburgh 42: 113 (1984)
= Rhododendron kinabaluense (Argent, A.Lamb & Phillipps) Craven; J. Adelaide Bot. Gard. 27: 29 (2014), nom. illeg.
subspecies :
subsp. moultonii
(Ridl.) Argent; Bot. J. Linn. Soc. 85: 16 (1982)
Distribution: Borneo
42 BOR
Synonyms: hidden
= Rhododendron brookeanum var. moultonii (Ridl.) Argent; Edinburgh J. Bot. 52(3): 364 (1995)
= Rhododendron moultonii Ridl.; J. Straits Branch Roy. Asiat. Soc. 63: 61 (1912)
subspecies :
subsp. palawanense
Argent; Gard. Bull. Singapore 56(1-2): 90 (2004)
Distribution: Palawan
42 PLW
Synonyms: hidden
= Rhododendron palawanense (Argent) Craven; J. Adelaide Bot. Gard. 27(4): 29 (2014)
subspecies :
subsp. schadenbergii
(Warb.) Argent; Edinburgh J. Bot. 52(3): 364 (1995)
Distribution: NE-Sulawesi; Palawan; Philippines (Luzon, Camiguin, Jolo, Mindanao)
42 PHI PLW SUL
Synonyms: hidden
= Rhododendron clementis Merr.; Philipp. J. Sci. 52: 160 (1908)
= Rhododendron javanicum var. schadenbergii (Warb.) Sleumer; Reinwardtia 5: 195 (1960)
= Rhododendron sarasinorum Warb.; K. F. Sarasin, Reis. Celebes 2: 386 (1905)
= Rhododendron schadenbergii Warb.; Fragm. Fl. Philipp. [Perkins] 172 (1905)
= Rhododendron spectabile Merr.; Philipp. Gov. Lab. Bur. Bull. 29: 42 (1905)
subspecies :
subsp. teysmannii
(Miq.) Argent; Rhododendrons subgen. Vireya 249 (2006)
Distribution: peninsular Malaysia (Kelantan, Pahang); Sumatra; Lesser Sunda Isl.
42 LSI MLY SUM
Synonyms: hidden
= Azalea teysmannii (Miq.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron basirotundatum J.J.Sm.; Contr. Arnold Arbor. 8: 124 (1934)
= Rhododendron javanicum var. teysmannii (Miq.) King & Gamble; J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 74: 75 (1905)
= Rhododendron teysmannii Miq.; Fl. Ned. Ind., Eerste Bijv. 585 (1861)
species :
Rhododendron jiewhoei
Argent; Rhododendrons subgen. Vireya 259 (2006)
Distribution: Borneo (Sabah)
42 BOR
species :
Rhododendron jinboense
Xiang Chen & X.Chen; J. Trop. Subtrop. Bot. 18(3): 260 (2010)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron jinchangense
Z.H.Yang; Acta Phytotax. Sin. 35(2): 186-187, f. 1 (1997)
Distribution: China (Yunnan)
36 CHI
species :
Rhododendron jingangshanicum
P.C.Tam; Bull. Bot. Res., Harbin 2(1): 89 (1982)
Distribution: China (SW-Jiangxi)
36 CHI
species :
Rhododendron jinpingense
W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 85-86, pl. 4 (1982)
Distribution: China (NE-Guangxi)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron jinxiuense
W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 89, pl. 7 (1982)
Distribution: China (E-Guangxi)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron jiulongshanense
Xiang Chen & Jia Y.Huang; Ann. Bot. Fenn. 47(5): 399 (2010)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron johnstoneanum
G.Watt ex Hutch.; Notes Roy. Bot. Gard. Edinburgh 12: 72 (1919)
Distribution: India (Manipur, Mizoram, Nagaland); Myanmar (Chin, Kachin)
40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
Synonyms: hidden
= Rhododendron formosum var. johnstonianum Brandis; Indian Trees 411 (1906)
species :
Rhododendron joniense
Ching & H.P.Yang; Bull. Bot. Res. North-East. Forest. Inst. 3(2): 95 (1983)
Distribution: China (S-Gansu)
36 CHI
species :
Rhododendron kaempferi
Planch.; Fl. des Serres 9: 77 (1853 publ. 1854)
Distribution: Japan (Hokkaido, Honshu, Shikoku, Kyushu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Azalea indica var. kaempferi (Planch.) Rehder; Bailey, Cycl. Amer. Hort. 1: 122 (1900)
= Azalea kaempferi (Planch.) André; Belgique Hort. 15: 184 (1865)
= Rhododendron indicum var. kaempferi (Planch.) Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 38 (1870)
= Rhododendron kaempferi f. kozushimense T.Yamaz.; Revis. Gen. Rhododendron Japan, Taiwan, Korea & Sakhalin 60 (1996)
= Rhododendron obtusum f. album Nakai; Bot. Mag. (Tokyo) 29: 261 (1915), nom. illeg.
= Rhododendron obtusum f. komatsui (Nakai) H.Hara; Enum. Spermatophytarum Japon. 1: 37 (1948)
= Rhododendron obtusum var. kaempferi (Planch.) E.H.Wilson; Wils. & Rehd., Monogr. Azaleas 38 (1921)
= Rhododendron scabrum var. kaempferi (Planch.) Nakai; Bot. Mag. (Tokyo) 33: 208 (1919)
= Rhododendron sieboldii Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 33 (1863)
variant :
var. iyoense
(Nakai) Sugim.; J. Geobot. 22(4): 52 (1975)
Distribution: Japan
38 JAP
Synonyms: hidden
= Rhododendron iyoense Nakai; Bot. Mag. (Tokyo) 43: 447 (1929)
variant :
var. lusidusculum
(Nakai) Sugim.; J. Geobot. 22(4): 52 (1975)
Distribution: Japan
38 JAP
Synonyms: hidden
= Rhododendron lusidusculum Nakai; Nakai & Koidz. Trees & Shrubs Japan Proper, ed. 1, 103 (1922), japonice
variant :
var. macrogemmum
Nakai; Nakai & G. Koidz., Trees Shrubs Japan 103 (1922)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron macrogemmum (Nakai) Nakai; Bot. Mag. (Tokyo) 45: 128 (1931)
= Rhododendron obtusum var. macrogemma (Nakai) Kitam.; Acta Phytotax. Geobot. 25: 37 (1972)
variant :
var. mikawanum
(Makino) Makino; J. Jap. Bot. 1: 18 (1917)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron indicum var. mikawanum Makino; Bot. Mag. (Tokyo) 23: 251 (1909)
= Rhododendron obtusum var. mikawanum (Makino) T.Yamaz.; Fl. Japan 3a: 27 (1993)
variant :
var. saikaiense
(T.Yamaz.) T.Yamaz.; Rev. Gen. Rhododendron Japan, Taiwan, Korea Sakhalin 61 (1996)
Distribution: Japan (Kyushu)
38 JAP
Synonyms: hidden
= Rhododendron obtusum var. saikaiense T.Yamaz.; Fl. Japan, 3a: 28 (1993)
variant :
var. tubiflorum
Komatsu; Ic. Pl. Koisik. 4: 7, t. 216 (1918)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron obtusum f. tubiflorum (Komatsu) Makino; Ill. Fl. Nippon 255 (1940)
= Rhododendron obtusum var. tubiflorum (Komatsu) T.Yamaz.; Fl. Japan, 3a: 28 (1993)
species :
Rhododendron kailiense
W.P.Fang & M.Y.He; Bull. Bot. Res., Harbin 2(2): 83, pl. 2 (1982)
Distribution: China (W-Guizhou)
36 CHI
species :
Rhododendron kanehirae
E.H.Wilson; Wilson & Rehder, Monogr. Azaleas, 28 (1921)
Distribution: N-Taiwan
38 TAI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
species :
Rhododendron kansuense
Millais; Rhododendrons, ser. 2: 67 (1924)
Distribution: China (Gansu)
36 CHI
species :
Rhododendron kasoense
Hutch. & Kingdon-Ward; Spec. Rhododendron, 787 (1930); Hutch. in Notes Roy. Bot. Gard. Edinburgh 16: 181 (1931), latine
Distribution: SE-Tibet; NE-India (Arunachal Pradesh); Myanmar (Kachin)
36 TIB 40 IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Monantha
species :
Rhododendron katsumatae
(M.Tash. & H.Hatta) Craven; Blumea 56(1): 34 (2011)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Menziesia katsumatae f. duplex (Satomi & M.Hashim.) Satomi; J. Phytogeogr. Taxon. 36(2): 112 (1988)
= Menziesia katsumatae M.Tash. & H.Hatta; Bot. Mag. (Tokyo) 99 (1053): 29 (1986)
= Menziesia multiflora f. duplex Satomi & M.Hashim.
species :
Rhododendron kawakamii
Hayata; J. Coll. Sci. Tokyo 30: Art. 1, 171 (1911)
Distribution: Taiwan
38 TAI
Synonyms: hidden
= Rhododendron taiwanianum S.S.Ying; Quart. J. Chinese Forest. 9(4): 116 (1976) (nom. nov. superfl.)
= Rhododendron kawakamii var. flaviflorum Tang S.Liu & T.I.Chuang; Quart. J. Taiwan Mus. 13: 64 (1960)
species :
Rhododendron keiskei
Miq.; Ann. Mus. Bot. Lugduno-Batavi 2: 163 (1866)
Distribution: Japan (Honshu, Shikoku, Kyushu)
38 JAP
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Triflora
Synonyms: hidden
= Azalea keiskei (Miq.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Azalea jodogawa Hassk.; Cat. Hort. Bot. Bogor. Alt. 162 (1844)
= Rhododendron jodogawa Hassk.; Cat. Hort. Bot. Bogor. Alt. 162 (1844)
= Rhododendron keiskei var. cordifolium Masam.; J. Trop. Agric. 4: 195 (1932)
= Rhododendron laticostum Ingram; Rhododendron Camellia Year Book 35: 30 (1970)
= Rhododendron trichocalyx Ingram; Rhododendron Camellia Year Book 35: 33 (1970)
variant :
var. hypoglaucum
Sutô & Suzuki; Trans. Nat. Hist. Soc. Formosa 22: 23 (1932)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron subnikomontanum Sutô & T.Suzuki; Nogakukenkyukwai-kwaisi (Utunomiya), No. 6, 31 (1930)
variant :
var. ozawae
T.Yamaz.; Fl. Japan, 3a: 20 (1993)
Distribution: Japan (Yakushima Isl.)
38 JAP NNS
species :
Rhododendron keleticum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 50 (1920)
Distribution: China (NW-Yunnan); SE-Tibet; Myanmar
36 CHI TIB 41 MYA
Synonyms: hidden
= Rhododendron calostrotum subsp. keleticum (Balf.f. & Forrest) Cullen; Notes Roy. Bot. Gard. Edinburgh 36(1): 112 (1978)
= Rhododendron radicans Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13: 290 (1922)
species :
Rhododendron kemulense
J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 3, 13: 448 (1935)
Distribution: C-Borneo
42 BOR
Remarks: Subgen. Rhododendron
species :
Rhododendron kendrickii
Nutt.; Mag. Nat. Hist. 12: 10 (1853)
Distribution: E-Tibet; Bhutan; NE-India (Arunachal Pradesh); Myanmar (Kachin)
36 TIB 40 BHU IND 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
Synonyms: hidden
= Azalea kendrickii (Nutt.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Azalea shepherdii (Nutt.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron pankimense Cowan & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 19(93): 180-182 (1936)
= Rhododendron shepherdii Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 360 (1853)
species :
Rhododendron kerowagiense
Argent; Folia Malaysiana 4(2): 108 (2003)
Distribution: New Guinea (Papua New Guinea)
42 NWG
species :
Rhododendron kesangiae
D.G.Long & Rushforth; Notes Roy. Bot. Gard. Edinburgh 45(2): 331 (1988 publ. 1989)
Distribution: Bhutan
40 BHU
Synonyms: hidden
= Rhododendron kesangiae var. album Namgyel & D.G.Long; New Plantsman 2: 68 (1995)
species :
Rhododendron keysii
Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 353 (1853)
Distribution: SE-Tibet; S-Tibet; Bhutan; N-India (Arunachal Pradesh)
36 TIB 40 BHU IND
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Cinnabarina
Synonyms: hidden
= Azalea keysii (Nutt.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron keysii var. unicolor Hutch.; J. Roy. Hort. Soc. 59: xxxix (1934)
species :
Rhododendron kiangsiense
W.P.Fang; Acta Phytotax. Sin. 7: 192 (1958)
Distribution: China (Jiangxi)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Maddenia
species :
Rhododendron kingianum
Watt; Gard. Chron., Ser. 3, 26: 306 (1899)
Distribution: NE-India (Arunachal Pradesh)
40 IND
Synonyms: hidden
= Rhododendron arboreum subsp. kingianum (Watt) Tagg; Stevenson, Spec. Rhododendron 15 (1930)
species :
Rhododendron kiusianum
Makino; Bot. Mag. (Tokyo) 28: 174 (1914)
Distribution: Japan (Kyushu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron indicum f. japonicum Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 41 (1870)
= Rhododendron indicum var. japonicum (Maxim.) Makino; Bot. Mag. (Tokyo) 22: 56 (1908)
= Rhododendron kaempferi var. japonicum (Maxim.) Rehder; Sarg., Trees & Shrubs 2: 30 (1907)
= Rhododendron kiusianum f. albiflorum Honda & Maeda; Nom. Pl. Jap., ed. emend. 385 (1957)
= Rhododendron kiusianum f. maedae Honda; Nom. Pl. Jap., ed. emend. 385 (1957)
= Rhododendron obtusum f. japonicum (Maxim.) E.H.Wilson; Wils. & Rehd., Monogr. Azaleas 33 (1921)
= Rhododendron obtusum var. japonicum (Maxim.) Kitam.; Acta Phytotax. Geobot. 25(2-3): 37 (1972)
= Rhododendron ×amoenum var. japonicum (Maxim.) Bean; Trees & Shrubs Brit. Isles 2: 341 (1914)
species :
Rhododendron kiyosumense
(Makino) Makino; Makino & Nemoto, Fl. Jap. ed. 2, 880 (1931)
Distribution: Japan (Honshu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Azalea kiyosumensis Makino; J. Jap. Bot. 6: 18 (1929)
= Rhododendron dilatatum var. kiyosumense (Makino) Hatus.; Sci. Rep. Yokosuka City Mus. 15: 22 (1969)
= Rhododendron kiyosumense f. glabrescens Minamit.; J. Jap. Bot. 94: 239 (2019)
= Rhododendron shimidzuanum Honda ex Makino & Nemoto; Fl. Japan., ed. 2 (Makino & Nemoto) 890 (1931), japonice
species :
Rhododendron kochii
Stein; Gartenflora 32: 193. t. 1195 (1885)
Distribution: ?Palawan; Philippines (Luzon, Mindoro, Negros, Mindanao)
42 PHI
Remarks: Subgen. Rhododendron
species :
Rhododendron kogo
Danet; Adansonia 29(1): 106 (2007)
Distribution: New Guinea (Irian Jaya)
42 NWG
species :
Rhododendron komiyamae
Makino; Three Pl. New Jap. 1 (1925); Makino in J. Jap. Bot. 3: 17 (1926)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron surugaense Sugim. ex Kurata; Ill. For. Trees Jap. 4: 166, t. 37 (1973)
species :
Rhododendron kongboense
Kingdon-Ward ex Hutch.; Bot. Mag. 160: t. 9492 (1937)
Distribution: S-Tibet; Bhutan
36 TIB 40 BHU
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
species :
Rhododendron konori
Becc.; Malesia 1: 200 (1878)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron astrapiae F.Först.; Repert. Spec. Nov. Regni Veg. 13: 224 (1914)
= Rhododendron devrieseanum Koord.; Nova Guinea 8: 185 (1909)
= Rhododendron devrieseanum subsp. astrapiae F.Först.; (1914)
= Rhododendron heptaster Gilli; Ann. Naturhist. Mus. Wien 83: 434 (1979 publ. 1980)
= Rhododendron toverenae F.Muell.; Vict. Naturalist 1: 101 (1884)
variant :
var. phaeopeplum
(Sleumer) Argent; Edinburgh J. Bot. 52(3): 364 (1995)
Distribution: New Guinea (Irian Jaya)
42 NWG
Synonyms: hidden
= Rhododendron phaeopeplum Sleumer; Reinwardtia 5: 92 (1960)
species :
Rhododendron korthalsii
Miq.; Ann. Mus. Bot. Lugduno-Batavi 1: 43 (1863)
Distribution: C-Sumatra
42 SUM
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Irrorata
species :
Rhododendron kotschyi
Simonk.; Enum. Fl. Transsilv. 389 (1886)
Distribution: North Macedonia; ?Albania; Romania; Bulgaria; Ukraine
13 BUL NMA ROM 14 UKR
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Rhododendron
Synonyms: hidden
= Rhododendron ferrugineum album Millais; Rhododendrons 164 (1917), nom. illeg.
= Rhododendron ferrugineum subsp. kotschyi (Simonk.) Hayek
= Rhododendron ferrugineum var. myrtifolium (Schott & Kotschy) Schröt.; Pflanzenleben Alp. 113 (1904)
= Rhododendron kotschyi f. album Rehder; Bibliogr. Cult. Trees 510 (1949)
= Rhododendron myrtifolium Schott & Kotschy; Bot. Zeitung (Berlin) 9: 17 (1851), nom. illeg.
species :
Rhododendron kroniae
Craven; Blumea 56(1): 34 (2011), nom. nov.
Distribution: Japan (Kyushu)
38 JAP
Synonyms: hidden
= Menziesia purpurea Maxim.; Bull. Acad. Imp. Sci. Saint-Pétersbourg, sér. 3, 11: 431 (1867)
species :
Rhododendron kuomeianum
Yu H.Chang, J.Nielsen & Y.P.Ma; Pl. Diversity 43(4): 296 (2021)
Distribution: China (Yunnan)
36 CHI
species :
Rhododendron kwangsiense
Hu; Iconogr. Cormophyt. Sin. 3: 149, f. 4252 (1974); et ex P. C. Tam, Survey Genus Rhododendron S. China 56, 105, f. 7 (1983); et ex W. P. Fang, Bull. Bot. Res., Harbin 3(4): 40-42, f. 2 (1983)
Distribution: China (W-Guangdong, N-Guangxi, SE-Guizhou, W-Hunan)
36 CHI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron kwangsiense var. salicinum P.C.Tam; Guihaia 3(3): 178 (1983)
= Rhododendron kwangsiense var. subfalcatum P.C.Tam; Guihaia 3(3): 178 (1983)
= Rhododendron mariae subsp. kwangsiense (Hu ex P.C.Tam) D.F.Chamb. & Rae; Edinburgh J. Bot. 47(2): 106 (1990)
= Rhododendron tiantangense G.Z.Li; Guihaia 15(4): 298-299, t. 2, f. 10-14 (1995)
variant :
var. obovatifolium
P.C.Tam; Guihaia 3(3): 178 (1983)
Distribution: China (SW-Guangdong)
36 CHI
species :
Rhododendron kwangtungense
Merr. & Chun; Sunyatsenia 1(1): 76-77 (1930)
Distribution: China (Guangdong, NE-Guangxi, Guizhou, S-Hunan)
36 CHI
Synonyms: hidden
= Rhododendron fongkaiense C.N.Wu & P.C.Tam; Med. Mat. Guangdong 4: 34, f. 2 (1978)
= Rhododendron rivulare var. kwangtungense (Merr. & Chun) X.F.Jin & B.Y.Ding; Taxon. Study Rhododendron subgen. Tsutsusi 135 (2009)
species :
Rhododendron kyawii
Lace & W.W.Sm.; Notes Roy. Bot. Gard. Edinburgh 8: 216 (1914)
Distribution: China (W-Yunnan); NE-Myanmar (Kachin)
36 CHI 41 MYA
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Parishia
Synonyms: hidden
= Rhododendron agapetum Balf.f. & Kingdon-Ward; Notes Roy. Bot. Gard. Edinburgh 9(44-45): 212-213 (1916)
= Rhododendron prophantum Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 13(61): 58 (1920)
species :
Rhododendron kyushuense
Minamit.; J. Jap. Bot. 93(2): 101 (2018)
Distribution: Japan
38 JAP
Synonyms: hidden
= Rhododendron kyushuense f. albiflorum Minamit.; J. Jap. Bot. 93(2): 102 (2018)
= Rhododendron kyushuense f. glabrescens (Nakai & H.Hara) Minamit.; J. Jap. Bot. 94(4): 238 (2019)
= Rhododendron reticulatum f. glabrescens (Nakai & H.Hara) T.Yamaz.; Fl. Japan 3a: 37 (1993)
= Rhododendron reticulatum var. glabrescens Nakai & H.Hara; J. Jap. Bot. 11: 824 (1935)
species :
Rhododendron labolengense
Ching & H.P.Yang; Bull. Bot. Res. North-East. Forest. Inst. 3(2): 94 (1983)
Distribution: China (S-Gansu)
36 CHI
species :
Rhododendron lacteum
Franch.; Bull. Soc. Bot. France 33: 231 (1886)
Distribution: China (W-Yunnan)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Taliensia
Synonyms: hidden
= Azalea lactea (Franch.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron mairei H.Lév.; Repert. Spec. Nov. Regni Veg. 12(325-330): 285 (1913)
species :
Rhododendron laetum
J.J.Sm.; Nova Guinea 12: 139 (1914)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron uliginosum J.J.Sm.; Nova Guinea 12: 136 (1914)
species :
Rhododendron lagopus
Nakai; Bot. Mag. (Tokyo) 40: 483 (1926)
Distribution: Japan (Honshu)
38 JAP
Remarks: Subgen. Tsutsusi, Sect. Brachycalyx
Synonyms: hidden
= Rhododendron nudipes var. lagopus (Nakai) T.Yamaz.; J. Jap. Bot. 59(7): 210 (1984)
= Rhododendron wadanum var. lagopus (Nakai) H.Hara; Enum. Spermatophytarum Japon. 1: 39 (1948)
variant :
var. niphophilum
(T.Yamaz.) T.Yamaz.; J. Jap. Bot., 63(12): 410 (1988)
Distribution: Japan (Honshu)
38 JAP
Synonyms: hidden
= Rhododendron lagopus f. albiflorum (Satomi & Fukush.) T.Yamaz.; Fl. Japan 3a: 35 (1993)
= Rhododendron lagopus f. niphophilum (T.Yamaz.) Minamit.; J. Jap. Bot. 94: 226 (2019)
= Rhododendron nudipes f. albiflorum Satomi & Fukush.; Sci. Stud. Hakusan Natl. Park 218 (1970)
= Rhododendron nudipes subsp. niphophilum T.Yamaz.; J. Jap. Bot., 56(11): 363 (1981)
species :
Rhododendron lagunculicarpum
J.J.Sm.; Bot. Jahrb. Syst. 68: 200 (1937)
Distribution: SW-Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
species :
Rhododendron lambianum
Argent; Folia Malaysiana 4(2): 109 (2003)
Distribution: Borneo (Sabah, Sarawak)
42 BOR
species :
Rhododendron lamii
J.J.Sm.; Nova Guinea 18: 96 (1936)
Distribution: New Guinea (Irian Jaya)
42 NWG
Remarks: Subgen. Rhododendron
species :
Rhododendron lampongum
Miq.; Fl. Ned. Ind., Eerste Bijv. 585 (1861)
Distribution: Sumatra
42 SUM
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Azalea lamponga (Miq.) Kuntze; Revis. Gen. Pl. 2: 386 (1891)
species :
Rhododendron lamrialianum
Argent & T.J.Barkman; New Plantsman 7(4): 208 (2000)
subspecies :
subsp. lamrialianum
Distribution: Borneo (Sabah)
42 BOR
subspecies :
subsp. gunsalamianum
Argent & T.J.Barkman; New Plantsman 7(4): 214 (2000)
Distribution: Borneo (Sabah)
42 BOR
species :
Rhododendron lanatoides
D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 39: 370, Map 115, 478 (1982)
Distribution: SE-Tibet
36 TIB
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Lanata
species :
Rhododendron lanatum
Hook.f.; Rhododendron Sikkim Himalaya t. 16 (1849)
Distribution: SE-Tibet; Nepal; Bhutan; N-India (Sikkim, Chumbi, Arunachal Pradesh)
36 TIB 40 BHU IND NEP
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Lanata
Synonyms: hidden
= Azalea lanata (Hook.f.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron flinckii Davidian; Quart. Bull. Amer. Rhododendron Soc. 25: 143 (1975)
species :
Rhododendron lanceolatum
Ridl.; J. Straits Branch Roy. Asiat. Soc. 63: 60 (1912)
Distribution: Borneo
42 BOR
Remarks: Subgen. Rhododendron
Synonyms: hidden
= Rhododendron partitum J.J.Sm.; Bull. Jard. Bot. Buitenz., Ser. 3, 13: 453 (1935)
species :
Rhododendron lanigerum
Tagg; Notes Roy. Bot. Gard. Edinburgh 16(79): 199-200 (1931)
Distribution: SE-Tibet; NE-India (Arunachal Pradesh)
36 TIB 40 IND
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Arborea
Synonyms: hidden
= Rhododendron lanigerum var. silvaticum (Cowan) Davidian; Rhododendron Species, 2 (Ser. Arboreum-Lacteum): 77 (1989)
= Rhododendron silvaticum Cowan; Notes Roy. Bot. Gard. Edinburgh 19(93): 185-186 (1936)
species :
Rhododendron laojunshanense
M.Y.Fang; J. Sichuan Univ., Nat. Sci. Ed. 1984(2): 111 (1984)
Distribution: China (SE-Yunnan)
36 CHI
Synonyms: hidden
= Rhododendron laojunense T.L.Ming; Acta Bot. Yunnan. 6(2): 150, f. 1 (1984)
species :
Rhododendron lapponicum
(L.) Wahlenb.; Fl. Lapp. 104 (1812)
Name: Lappland-Rose, Nordische Alpenrose, Lapland rosebay
Distribution: Norway; Sweden; Finland; Siberia (Yakutia); Russian Far East (Amur, Kamchatka, Khabarovsk, Magadan, Primorye, Sakhalin); China (Heilongjiang, Jilin, Liaoning, Nei Mongol); Mongolia; Ryukyu Isl.; Alaska; Greenland; Canada (Alberta, British Columbia, Labrador, Manitoba, Newfoundland, Nova Scotia, Northern Territories, Nunavut, Ontario, Québec, Yukon); USA (Connecticut, Maine, New Hampshire, New York, Wisconsin)
10 FIN NOR SWE 30 SIB 31 RFE 36 CHI 37 MON 38 NNS 70 ASK CDN GNL 71 CDN 72 CDN 74 USA 75 USA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lapponica
Synonyms: hidden
= Azalea ferruginosa Pall.; Fl. Ross. [Pallas] 2: t. 70 (1815)
= Azalea lapponica L.; Sp. Pl. 151 (1753)
= Azalea pallida Turcz.; Bull. Soc. Imp. Naturalistes Moscou 11: 96 (1838)
= Osmothamnus pallidus (Turcz.) DC.; Prodr. [A. P. de Candolle] 7: 715 (1839)
= Rhododendron confertissimum Nakai; Rep. Veg. Mt. Waigal-bon, N. Korea, 36 (1916) nomen
= Rhododendron lapponicum var. roseum Abrom.; Biblioth. Bot. 8(42, 2): 51 (1899)
= Rhododendron lapponicum var. viride Berlin; Öfvers. Kongl. Vetensk.-Akad. Förh. 41(7): 38 (1884)
= Rhododendron micranthum Maxim.; Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 16(9): 18 (1870), nom. illeg.
= Rhododendron pallidum (Turcz.) Dümmer; Gard. Chron., Ser. 3, 53: 264 (1913)
= Rhododendron parvifolium subsp. confertissimum (Nakai) A.P.Khokhr.; Sosud. Rast. Sovet. Dal´nego Vostoka 5: 133 (1991)
species :
Rhododendron lasiostylum
Hayata; Icon. Pl. Formosan. 3: 135-136 (1913)
Distribution: C-Taiwan
38 TAI
Remarks: Subgen. Tsutsusi, Sect. Tsutsusi
Synonyms: hidden
= Rhododendron sasakii E.H.Wilson; J. Arnold Arbor. 6(3): 181 (1925)
species :
Rhododendron lateriflorum
R.C.Fang & A.L.Zhang; Notes Roy. Bot. Gard. Edinburgh 41(1): 160 (1983)
Distribution: China (NW-Yunnan); SE-Tibet
36 CHI TIB
species :
Rhododendron latoucheae
Franch.; Bull. Soc. Bot. France 46: 210 (1899)
Distribution: China (Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Zhejiang); Ryukyu Isl.
36 CHI 38 NNS
Remarks: Subgen. Azaleastrum, Sect. Choniastrum
Synonyms: hidden
= Azalea elliptica (Maxim.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron ellipticum Maxim.; Bull. Acad. Imp. Sci. Saint-Petersbourg 32(4): 497 (1888) (not Hoffmannsegg (1826)
= Rhododendron ellipticum var. leptosanthum (Hayata) S.S.Ying; Quart. J. Chinese Forest. 9(4): 122 (1976)
= Rhododendron ellipticum var. tanakae (Hayata) S.S.Ying; Coloured Ill. Fl. Taiwan 5: 122 (1995)
= Rhododendron latoucheae var. ionanthum (W.P.Fang) G.Z.Li; Guihaia 15(3): 205 (1995)
= Rhododendron leiopodum Hayata; Icon. Pl. Formosan. 3: 136-137, t. 24 (1913)
= Rhododendron leptanthum Hayata; Icon. Pl. Koisik. 2: 93, t. 131 (1915) (not F. Muell. (1889)
= Rhododendron leptosanthum Hayata; Icon. Pl. Formosan. 3: 137-138 (1913)
= Rhododendron tanakae Hayata; Icon. Pl. Formosan. 4: 15 (1914)
= Rhododendron wilsoniae Hemsl. & E.H.Wilson; Bull. Misc. Inform. Kew 1910: 116 (1910)
= Rhododendron wilsoniae var. ionanthum W.P.Fang; Acta Phytotax. Sin. 21(4): 463-464, f. 8 (1983)
variant :
var. amamiense
Ohwi; Acta Phytotax. Geobot. 6: 49 (1937), pro syn.
Distribution: Ryukyu Isl.
38 NNS
Synonyms: hidden
= Rhododendron amamiense Ohwi; Acta Phytotax. Geobot. 6: 49 (1937)
species :
Rhododendron laudandum
Cowan; Notes Bot. Gard. Edinb. 19: 222 (1937)
Distribution: SE-Tibet; Bhutan
36 TIB 40 BHU
Remarks: Subgen. Rhododendron, Sect. Pogonanthum
variant :
var. temoense
Kingdon-Ward ex Cowan & Davidian; Rhodod. Yearbook 2: (1947)
Distribution: SE-Tibet
36 TIB
species :
Rhododendron leigongshanense
C.H.Yang, Z.G.Xie, Y.F.Yu & Z.R.Yang; Bangladesh J. Pl. Taxon. 22(2): 119 (2015)
Distribution: China (Guizhou)
36 CHI
species :
Rhododendron leishanicum
W.P.Fang & S.S.Chang ex D.F.Chamb.; Notes Roy. Bot. Gard. Edinburgh 39(2): 261 (1982)
Distribution: China (E-Guangxi, NE-Guizhou)
36 CHI
Remarks: Subgen. Hymenanthes, Sect. Pontica, subsect. Maculifera
Synonyms: hidden
= Rhododendron oligocarpum W.P.Fang; Acta Phytotax. Sin. 21(4): 466-467, pl. 1, f. 2 (1983) [fide Chen et al. 2024]
species :
Rhododendron lepidostylum
Balf.f. & Forrest; Notes Roy. Bot. Gard. Edinburgh 12: 124 (1920)
Distribution: China (Yunnan)
36 CHI
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Trichoclada
species :
Rhododendron lepidotum
Wall.; Numer. List [Wallich] no. 758, ex Gen. Hist. 3: 845 (1834), descr.
Distribution: China (W-Sichuan, NW-Yunnan); SE-Tibet; Pakistan (Hazara); Nepal; Bhutan; India (Himachal Pradesh, Jammu & Kashmir); NE-Myanmar (Kachin)
36 CHI TIB 40 BHU IND NEP PAK 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Lepidota
Synonyms: hidden
= Azalea lepidota (Wall. ex G.Don) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron cremnastes Balf.f. & Farrer; Notes Roy. Bot. Gard. Edinburgh 13: 253 (1922)
= Rhododendron elaeagnoides Hook.f.; Rhod. Sikkim-Himal. 2. t. 23 B (1851)
= Rhododendron lepidotum subsp. obovatum (Hook.f.) Pradhan & Lachungpa; Sikkim-Himalayan Rhododendrons 45 (1990)
= Rhododendron lepidotum subsp. salignum (Hook.f.) Pradhan & Lachungpa; Sikkim-Himalayan Rhododendrons 45 (1990)
= Rhododendron lepidotum var. album Davidian; J. Amer. Rhododendron Soc. 36(1): 16 (1982)
= Rhododendron lepidotum var. minutiforme Davidian; J. Amer. Rhododendron Soc. 36(1): 17 (1982)
= Rhododendron obovatum Hook.f.; Rhod. Sikkim-Himal. Consp. 6 (1849)
= Rhododendron salignum Hook.f.; Rhod. Sikkim-Himal. Consp. 6. t. 23 (1849)
= Rhododendron sinolepidotum Balf.f.; Notes Roy. Bot. Gard. Edinburgh 10: 155 (1917)
species :
Rhododendron leptanthum
F.Muell.; Trans. Roy. Soc. Vict. N. S. 1(2): 24 (1889)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Remarks: Subgen. Rhododendron
variant :
var. warianum
(Schltr.) Argent; Edinburgh J. Bot. 52(3): 365 (1995)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Synonyms: hidden
= Rhododendron warianum Schltr.; Bot. Jahrb. Syst. 55: 151 (1918)
species :
Rhododendron leptobrachion
Sleumer; Reinwardtia 5: 203 (1960)
Distribution: C-Sulawesi
42 SUL
Remarks: Subgen. Rhododendron
species :
Rhododendron leptocarpum
Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 6: 256 (1854)
Distribution: China (NW-Yunnan); S-Tibet; Bhutan; N-India (Arunachal Pradesh); NE-Myanmar
36 CHI TIB 40 BHU IND 41 MYA
Remarks: Subgen. Rhododendron, Sect. Rhododendron, subsect. Boothia
Synonyms: hidden
= Azalea leptocarpa (Nutt.) Kuntze; Revis. Gen. Pl. 2: 387 (1891)
= Rhododendron micromeres Tagg; Notes Bot. Gard. Edinb. 16: 211 (1931)
= Rhododendron pumilum Nutt.; Hooker´s J. Bot. Kew Gard. Misc. 5: 354 (1853), nom. illeg.
