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452.0000 Family Asteraceae Dumort.; Commentat. Bot. [Dumortier] 55 (1822)
1620 genera, ca. 29.000 spp. (35.000 spp. incl. microspecies). Systematics taken mostly from Funk et al. (2009, 2020) and Zuntini et al. (2024). Barnadesioideae (so far treated as most basal member of Asteraceae) might be a separate family, more related to Calyceraceae.
Species listed in database: 35255; hybrids: 678
= Acarnaceae Link; (1829)
= Ambrosiaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820), nom. cons.
= Anthemidaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820)
= Aposeridaceae Raf.; New Fl. [Rafinesque] 4: 106 (1838)
= Arctotaceae Bessey; Univ. Stud. Nebraska 14: 107 (1914)
= Arctotidaceae Bercht. & J.Presl; Prír. Rostlin 255 (1820)
= Artemisiaceae Martinov; Tekhno-Bot. Slovar 48 (1820)
= Athanasiaceae Martinov; Tekhno-Bot. Slovar 56 (1820)
= Calendulaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820)
= Carduaceae Bercht. & J.Presl; Prír. Rostlin 255 (1820)
= Carlinaceae Bercht. & J.Presl; Prír. Rostlin 255 (1820)
= Centaureaceae Bercht. & J.Presl; Prír. Rostlin 255 (1820)
= Cichoriaceae Juss.; Gen. Pl. [Jussieu] 168 (1789), nom. cons.
= Cnicaceae Vest; Anleit. Stud. Bot. 273, 297 (1818)
= Compositae Giseke; Prael. Ord. Nat. Pl. 538 (1792), nom. cons.
= Coreopsidaceae Link; Handbuch [Link] 1: 768 (1829)
= Cynaraceae Burnett; Outlines Bot. [Burnett] 926, 931, 1094, 1111 (1835)
= Echinopaceae Bercht. & J.Presl; Prír. Rostlin 255 (1820)
= Eupatoriaceae Bercht. & J.Presl; Prír. Rostlin 253 (1820)
= Gnaphaliaceae Link ex F.Rudolphi; Syst. Orb. Veg. 46 (1830)
= Grindeliaceae Rchb. ex A.Heller; Muhlenbergia 2: 330 (1907)
= Heleniaceae Raf.; Cincinnati Lit. Gaz. 2: 28 (1824)
= Helianthaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820)
= Helichrysaceae Link; Handbuch [Link] 1: 712 (1829)
= Inulaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820)
= Ivaceae Raf.; Fl. Tellur. 1: 31 (1837)
= Lactucaceae Drude; Handb. Bot. 3(2): 369 (1886)
= Lapsanaceae Martinov; (1820)
= Madiaceae A.Heller; Muhlenbergia 2: 332 (1907)
= Matricariaceae Voigt; Hort. Suburb. Calcutt. 400 (1845)
= Mutisiaceae Burnett; Outlines Bot. [Burnett] 934, 935, 1094, 1111 (1835)
= Nassauviaceae Burmeist.; Handb. Naturgesch. 290 (1836)
= Partheniaceae Link; Handbuch [Link] 1: 816 (1829)
= Perdiciaceae Link; Handbuch [Link] 1: 728 (1829)
= Picridaceae Martinov; Tekhno-Bot. Slovar 482 (1820)
= Santolinaceae Martinov; Tekhno-Bot. Slovar 560 (1820)
= Senecionaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820)
= Serratulaceae Martinov; Tekhno-Bot. Slovar 577 (1820)
= Tanacetaceae Vest; Anleit. Stud. Bot. 273, 298 (1818)
= Tussilagaceae Bercht. & J.Presl; Prír. Rostlin 254 (1820)
= Vernoniaceae Burmeist.; Handb. Naturgesch. 296 (1836)
= Xanthiaceae Vest; Anleit. Stud. Bot. 273, 298 (1818)
= Xeranthemaceae Döll; Rhein. Fl. [Döll] 498 (1843)
452.6228 Genus Tetradymia DC.; Prodr. [A.P. de Candolle] 6: 440 (1830)
Distribution: W-North America to N-Mexico
Species listed in database: 10; hybrids: 1
= Lagothamnus Nutt.; Trans. Amer. Philos. Soc., n. s. 7: 416 (1840)

Search for: Tetradymia axillaris-var.-longispina

Nothing found!
species :
Tetradymia argyraea Munz & J.C.Roos; Aliso 2: 237 (1950)
Distribution: USA (California)
76 USA
species :
Tetradymia axillaris A.Nelson; Bot. Gaz. 37: 277 (1904)
Name: Cotton Thorn
Distribution: USA (California, Nevada, Utah)
76 USA
variant :
var. longispina (M.E.Jones) Strother; Brittonia 26(2): 197 (1974)
Distribution: USA (California, Nevada, Utah)
76 USA
Synonyms: hidden
= Tetradymia longispina (M.E.Jones) Rydb.; Bull. Torrey Bot. Club 37: 471 (1910)
= Tetradymia spinosa var. longispina M.E.Jones; Proc. Calif. Acad. Sci., Ser. 2, 5: 698 (1895)
species :
Tetradymia canescens DC.; Prodr. [A.P. de Candolle] 6: 440, et in Icon. Sel. Pl. [Delessert] 4: 27, t. 60 (1838)
Name: Spineless Horsebrush
Distribution: Canada (British Columbia); USA (Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, Wyoming)
71 CDN 73 USA 76 USA 77 USA
Synonyms: hidden
= Tetradymia canescens var. linearis Payson; Univ. Wyoming Publ. Sci., Bot. 1: 108 (1924)
= Tetradymia inermis Nutt.; Trans. Amer. Philos. Soc., n. s. 7: 415 (1840)
variant :
var. thorneae N.D.Atwood, S.L.Welsh & L.C.Higgins; Rhodora 109(940): 405 (2007)
Distribution: USA (Arizona)
76 USA
species :
Tetradymia comosa A.Gray; Proc. Amer. Acad. Arts 12: 60 (1877)
Distribution: USA (California); Mexico (Baja California Norte)
76 USA 79 MEX
species :
Tetradymia filifolia Greene; Bull. Torrey Bot. Club 123 (1898)
Distribution: USA (New Mexico)
77 USA
species :
Tetradymia glabrata Torr. & A.Gray; Pacif. Railr. Rep. 2: (1854) 122. I. 5
Distribution: USA (California, Idaho, Nevada, Oregon, Utah)
73 USA 76 USA
Synonyms: hidden
= Tetradymia glabrata f. calva Payson; Univ. Wyoming Publ. Sci., Bot. 1: 107 (1924)
species :
Tetradymia nuttallii Torr. & A.Gray; Fl. N. Amer. [Torrey & A.Gray] 2: 447 (1843)
Distribution: USA (Nevada, Utah, Wyoming)
73 USA 76 USA
species :
Tetradymia spinosa Hook. & Arn.; Bot. Beechey Voy. 360 (1839)
Distribution: USA (California, Colorado, Idaho, Montana, Nevada, New Mexico, Oreg, Utah., Wyoming)
73 USA 76 USA 77 USA
Synonyms: hidden
= Lagothamnus ambiguus Nutt.; Trans. Amer. Philos. Soc., n. s. 7: 417 (1840)
= Lagothamnus microphyllus Nutt.; Trans. Amer. Philos. Soc., n. s. 7: 416 (1840)
species :
Tetradymia stenolepis Greene; Bull. Calif. Acad. Sci. 1(3): 92 (1885)
Distribution: USA (Arizona, California, Nevada)
76 USA
species :
Tetradymia tetrameres (S.F.Blake) Strother; Brittonia 26(2): 192 (1974)
Distribution: USA (California, Nevada)
76 USA
Synonyms: hidden
= Tetradymia comosa subsp. tetrameres S.F.Blake; Proc. Biol. Soc. Washington 35: 176 (1922)
species :
Tetradymia ×permixta Payson; Univ. Wyoming Publ. Sci., Bot. 1: 105 (1924)
Distribution: USA (Wyoming)
73 USA
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A complete, synonymic checklist of the Higher Plants of the World

Version 25.05 (May 23rd, 2025)

Covering 356,547 accepted species,
8,782 hybrids, 48,090 accepted infraspecific taxa and 1,003,107 synonyms,
in total 1,416,616* names

[*about 25,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]

With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life