503.0000 Family Plantaginaceae Juss.; Gen. Pl. [Jussieu] 89 (1789), nom. cons.

93 genera, ca. 2050 spp.

Species listed in database: 2093; hybrids: 92

503.2206 Genus Penstemon Schmidel; Icon. Pl., ed. Keller, [2] (1763)

Distribution: mostly Rocky Mountains, some to Mexico, 1 south to Guatemala, few Eastern USA, some north to Alaska. In North America the 3rd largest genus after Astragalus and Carex.

Species listed in database: 284; hybrids: 8

species :

Penstemon abietinus Pennell; Contr. U.S. Natl. Herb. 20: 376 (1920)

Name: Firleaf beardtongue (EN)

Distribution: USA (Utah: Emery Co., Iron Co., Sevier Co., Utah Co.)

76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon absarokensis Evert; Madroño 31(3): 140 (1984)

Name: Absaroka Range beardtongue (EN)

Distribution: USA (Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon acaulis L.O.Williams; Ann. Missouri Bot. Gard. 21: 345 (1934)

Name: Stemless beardtongue (EN)

Distribution: USA (Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon acuminatus Douglas; Bot. Reg., t. 1285 (1829)

Name: Sharpleaf beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Penstemon acuminatus var. fendleri M.E.Jones; Contr. W. Bot. 12: 61 (1908)

variant :

var. latibracteatus N.H.Holmgren; Brittonia 31(2): 232 (1979), as ´latebracteatus´

Name: Sharpleaf beardtongue (EN)

Distribution: USA (Idaho, Nevada, Oregon)

73 USA 76 USA

species :

Penstemon alamosensis Pennell & Nisbet; Univ. Kansas Sci. Bull. 41: 709 (1960)

Name: Alamo beardtongue (EN)

Distribution: USA (New Mexico, Texas)

77 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon albertinus Greene; Leafl. Bot. Observ. Crit. 1: 167 (1906)

Name: Alberta beardtongue (EN)

Distribution: Canada (Alberta, British Columbia); USA (Idaho, Montana)

71 CDN 73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon caelestinus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 95: 1 (1942)

= Penstemon calcareus M.E.Jones; Contr. W. Bot. 12: 60 (1908), nom. illeg., non Brandegee

species :

Penstemon albidus Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 53 (1818)

Name: White beardtongue (EN)

Distribution: Canada (Alberta, Manitoba, Ontario, Saskatchewan); USA (Colorado, Iowa, Kansas, Minnesota, Montana, North Dakota, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, Wyoming)

71 CDN 72 CDN 73 USA 74 USA 75 USA 77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon teretiflorus Fraser ex Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 53 (1818)

= Penstemon viscidulus Nees; Reise Bras. [Wied-Neuwied] 2: 333 (1821)

species :

Penstemon albomarginatus M.E.Jones; Contr. W. Bot. 12: 61 (1908)

Name: Whitemargin beardtongue (EN)

Distribution: USA (NW-Arizona, SE-California, S-Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon ambiguus Torr.; Ann. Lyceum Nat. Hist. New York 2: 228 (1828)

Name: Gilia beardtongue (EN)

Distribution: USA (Colorado, Kansas, New Mexico, Oklahoma, Texas); Mexico (Chihuahua)

73 USA 74 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Ambigui

Synonyms: hidden

= Leiostemon ambiguus (Torr.) Greene; Leafl. Bot. Observ. Crit. 1: 223 (1906)

= Penstemon ambiguus var. foliosus Benth.; Prodr. [A.P. de Candolle] 10: 321 (1846)

variant :

var. laevissimus (D.D.Keck) N.H.Holmgren; Brittonia 31(1): 104 (1979)

Name: Pink plains beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Nevada, Texas, Utah, Wyoming)

73 USA 76 USA 77 USA

Synonyms: hidden

= Penstemon ambiguus subsp. laevissimus D.D.Keck; J. Wash. Acad. Sci. 29: 491 (1939)

species :

Penstemon ammophilus N.H.Holmgren & L.M.Schultz; Brittonia 34(4): 381 (1982)

Name: Canaan mountain beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon amphorellae Crosswh.; Amer. Midl. Naturalist 84: 241 (1970)

Distribution: Mexico (Coahuila, Guanajuato, Hidalgo, Nuevo León, Queretaro, San Luis Potosi, Zacatecas)

79 MEX

species :

Penstemon angelicus (I.M.Johnst.) Moran; Phytologia 45: 496 (1980)

Distribution: Mexico (Isla Ángel de la Guarda)

79 MEX

Synonyms: hidden

= Penstemon clevelandii subsp. angelicus (I.M.Johnst.) D.D.Keck; Amer. Midl. Naturalist 18: 811 (1937)

= Penstemon clevelandii var. angelicus I.M.Johnst.; Proc. Calif. Acad. Sci., Ser. 4, 12: 1165 (1924)

species :

Penstemon anguineus Eastw.; Bull. Torrey Bot. Club 32: 208 (1905)

Name: Siskiyou beardtongue (EN)

Distribution: USA (California, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon minor (A.Gray) D.D.Keck; Publ. Carnegie Inst. Wash. No. 520 (J. Clausen, D. D. Keck & Hiesey, Exper. Stud. Nat. Spec. I.) 295 (1940)

= Penstemon rattanii var. minor A.Gray; Proc. Amer. Acad. Arts 15: 51 (1879)

species :

Penstemon angustifolius Nutt. ex Pursh; Fl. Amer. Sept. [Pursh] 2: 738 (1813)

Name: Narrowleaf beardtongue (EN)

Distribution: USA (Colorado, Montana, North Dakota, Nebraska, South Dakota, Wyoming)

73 USA 74 USA

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Penstemon caeruleus Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 52 (1818), nom. superfl.

= Chelone caerulea Spreng.; Syst. Veg., ed. 16 [Sprengel] 2: 813 (1825)

variant :

var. caudatus (A.Heller) Rydb.; Bull. Torrey Bot. Club 33: 151 (1906)

Distribution: USA (Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Wyoming)

73 USA 74 USA 77 USA

Synonyms: hidden

= Penstemon angustifolius subsp. caudatus (A.Heller) D.D.Keck; J. Wash. Acad. Sci. 29: 490 (1939)

= Penstemon caudatus A.Heller; Minnesota Bot. Stud. 2: 34 (1898)

variant :

var. dulcis Neese; Great Basin Naturalist 46(3): 459 (1986)

Distribution: USA (Utah)

76 USA

variant :

var. venosus (D.D.Keck) N.H.Holmgren; Brittonia 31(1): 104 (1979)

Distribution: USA (Arizona, Colorado, New Mexico, Utah)

73 USA 76 USA 77 USA

Synonyms: hidden

= Penstemon angustifolius subsp. venosus D.D.Keck; J. Wash. Acad. Sci. 29: 490 (1939)

= Penstemon venosus (D.D.Keck) Reveal; Great Basin Naturalist 34(4): 311 (1974)

variant :

var. vernalensis N.H.Holmgren; Brittonia 31(2): 229 (1979)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

species :

Penstemon arenarius Greene; Pittonia 1: 282 (1889)

Name: Nevada sanddune beardtongue (EN)

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon deustus var. arenarius (Greene) Jeps.; Man. Fl. Pl. Calif. [Jepson] 916 (1925)

= Penstemon maguirei Crosswh.; Leafl. W. Bot. 10: 171 (1965)

species :

Penstemon arenicola A.Nelson; Bull. Torrey Bot. Club 25: 280 (1898)

Name: Red Desert Beardtongue

Distribution: USA (Colorado, Montana, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon aridus Rydb.; Mem. New York Bot. Gard. 1: 348 (1900)

Name: Stiff-leaf beardtongue (EN)

Distribution: USA (E-Idaho, S-Montana, N-Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon arkansanus Pennell; Proc. Acad. Nat. Sci. Philadelphia 73: 493 (1921 publ. 1922)

Name: Arkansas beardtongue (EN)

Distribution: USA (Arkansas, Missouri, Oklahoma)

74 USA 75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon multicaulis Pennell; Proc. Acad. Nat. Sci. Philadelphia 73: 494 (1921 publ. 1922)

= Penstemon pallidus subsp. arkansanus (Pennell) R.W.Benn.; Phytologia 9: 57 (1963)

= Penstemon wherryi Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 228 (1935)

species :

Penstemon atropurpureus (Sweet) G.Don; Hort. Brit. [Loudon] 243 (1830)

Distribution: Mexico (Durango, Sinaloa, etc.)

79 MEX

Synonyms: hidden

= Chelone atropurpurea Sweet; Brit. Fl. Gard. [Sweet] 3: t. 235 (1828)

species :

Penstemon attenuatus Douglas; Edwards´s Bot. Reg. 15: t. 1295 (1830)

Name: Sulphur beardtongue (EN)

Distribution: USA (Idaho, Montana, Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon digitalis var. attenuatus (Douglas) Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 345 (1839)

= Penstemon attenuatus f. multicolor Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8 (1941)

= Penstemon attenuatus subsp. hyacinthinus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8 (1941)

= Penstemon attenuatus var. glabratus G.N.Jones; Res. Stud. State Coll. Wash. 2: 127 (1931)

= Penstemon attenuatus var. hyacinthinus (Pennell) M.Peck; Man. Pl. Oregon 644 (1941)

= Penstemon cephalanthus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 95: 3 (1942)

= Penstemon nelsoniae D.D.Keck & Thomps.; Rhodora 37: 419 (1935)

= Penstemon veronicifolius Greene; Leafl. Bot. Observ. Crit. 1: 167 (1906)

variant :

var. militaris (Greene) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 373 (1959)

Name: South Idaho beardtongue (EN)

Distribution: USA (Idaho, Montana)

73 USA

Synonyms: hidden

= Penstemon assurgens D.D.Keck; Amer. Midl. Naturalist 23: 609 (1940)

= Penstemon attenuatus subsp. militaris (Greene) D.D.Keck; Amer. Midl. Naturalist 33: 171 (1945)

= Penstemon militaris Greene; Leafl. Bot. Observ. Crit. 1: 166 (1906)

variant :

var. palustris (Pennell) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 373 (1959)

Name: Sulphur beardtongue (EN)

Distribution: USA (Idaho, Oregon)

73 USA

Synonyms: hidden

= Penstemon attenuatus subsp. palustris (Pennell) D.D.Keck; Amer. Midl. Naturalist 33: 171 (1945)

= Penstemon palustris Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8 (1941)

variant :

var. pseudoprocerus (Rydb.) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 373 (1959)

Name: Small beardtongue (EN)

Distribution: USA (Idaho, Montana, Wyoming)

73 USA

Synonyms: hidden

= Penstemon attenuatus subsp. pseudoprocerus (Rydb.) D.D.Keck; Amer. Midl. Naturalist 33: 169 (1945)

= Penstemon owenii A.Nelson; Bot. Gaz. 34: 32 (1902)

= Penstemon procerus var. pseudoprocerus (Rydb.) A.Nelson; New Man. Bot. Centr. Rocky Mt., ed. 2: 444 (1909)

= Penstemon propinquus Greene; Leafl. Bot. Observ. Crit. 1: 166 (1906)

= Penstemon pseudohumilis Rydb.; Mem. New York Bot. Gard. 1: 347 (1900)

= Penstemon pseudoprocerus Rydb.; Mem. New York Bot. Gard. 1: 346 (1900)

species :

Penstemon atwoodii S.L.Welsh; Great Basin Naturalist 35(4): 378 (1975)

Name: Atwood´s beardtongue (EN)

Distribution: USA (Utah: Garfield Co., Kane Co.)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon auriberbis Pennell; Contr. U.S. Natl. Herb. 20: 339 (1920)

Name: Colorado beardtongue (EN)

Distribution: USA (Colorado, New Mexico)

73 USA 77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon parviflorus Pennell; Contr. U.S. Natl. Herb. 20: 340 (1920)

species :

Penstemon australis Small; Fl. S.E. U.S. [Small] 1060 (1903)

Name: Southern beardtongue (EN)

Distribution: USA (Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee, Virginia)

78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon australis f. odontophyllus Fernald; Rhodora 51: 84 (1949)

species :

Penstemon azureus Benth.; Pl. Hartw. [Bentham] 327 (1846)

Name: Azure beardtongue (EN)

Distribution: USA (California, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon azureus f. jeffreyanus (Hook.) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 769 (1894)

= Penstemon glaucifolius A.Gray; Pacif. Railr. Rep. 6(3, Nos. 1-2), Bot. [Williamson & Abbot] 82 (1858)

= Penstemon heterophyllus var. azureus (Benth.) Jeps.; Man. Fl. Pl. Calif. [Jepson] 917 (1925)

= Penstemon jeffreyanus A.Murray bis; Bot. Exped. Oregon 8: 2 (1853), nomen

= Penstemon tenellus Kellogg; Proc. Calif. Acad. Sci. 1: 56 (1855)

variant :

var. angustissimus A.Gray; Syn. Fl. N. Amer. 2(1): 272 (1878)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon azureus subsp. angustissimus (A.Gray) D.D.Keck; Univ. Calif. Publ. Bot. 16: 402 (1932)

species :

Penstemon baccharifolius Hook.; Bot. Mag. t. 4627 (1852)

Name: Baccharisleaf beardtongue (EN)

Distribution: USA (Texas); Mexico (Chihuahua, Coahuila, Guanajuato, Jalisco, San Luis Potosi)

77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Baccharifolii

species :

Penstemon barbatus (Cav.) Roth; Catal. Bot. 3: 49 (1806)

Name: Beardlip beardtongue (EN)

Distribution: Germany [I]; Myanmar [I]; USA (Arizona, Massachusetts, New Mexico, Texas, Utah); Mexico (Aguascalientes, Chiapas, Chihuahua, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Hidalgo, Jalisco, Mexico State, Michoacán, Morelos, Nuevo León, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

11 ger 41 mya 75 USA 76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Elmigera

Synonyms: hidden

= Chelone angustifolia Steud.; Nomencl. Bot. [Steudel], ed. 1, 1: 186 (1821) non Kunth 1818

= Chelone barbata Cav.; Icon. [Cavanilles] 3: 22, t. 242 (1795)

= Chelone formosa J.C.Wendl.; Bot. Beob. [Wendland] 51 (1798)

= Chelone formosa J.Thomps.; Bot. Displ., t. 4 (1798)

= Elmigera barbata (Cav.) Rchb. ex Steud.; Nomencl. Bot. [Steudel], ed. 2, 1: 550 (1841)

= Penstemon angustifolius C.Fraser ex Pursh; Fl. Amer. Sept. [Pursh] 2: 738 (1813), nom. inval.

= Penstemon barbatus f. flaviflorus (M.E.Jones) Pennell; Contr. U.S. Natl. Herb. 29: 114 (1945)

= Penstemon barbatus var. carneus Lindl.; Edwards´s Bot. Reg. 25: t. 21 (1839)

= Penstemon barbatus var. puberulus A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 114 (1858)

= Penstemon coccineus Engelm.; Mem. Tour N. Mexico [Wislizenus] 107 (Sketch, 23) (1848)

= Penstemon coccineus var. filifolius A.Gray; Proc. Amer. Acad. Arts 21: 402 (1886)

= Penstemon coeruleus Torr.; Ann. Lyceum Nat. Hist. New York 2: 220 (1827), nom. illeg.

= Penstemon flaviflorus M.E.Jones; Contr. W. Bot. 12: 66 (1908)

= Penstemon formosus (J.Thomps.) Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 346 (1839)

variant :

var. torreyi (Benth. ex DC.) A.Gray; Proc. Amer. Acad. Arts 6: 59 (1862)

Name: Torreys beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Texas, Utah); Mexico (Sonora, Chihuahua, Coahuila, Nuevo León)

73 USA 76 USA 77 USA 79 MEX

Synonyms: hidden

= Penstemon barbatus f. torreyi (Benth. ex DC.) Voss in Vilm.; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 766 (1894)

= Penstemon barbatus subsp. torreyi (Benth.) D.D.Keck; J. Wash. Acad. Sci. 29: 491 (1939)

= Penstemon torreyi Benth.; Prodr. [A.P. de Candolle] 10: 324 (1846)

variant :

var. trichander A.Gray; Proc. Amer. Acad. Arts 11: 94 (1876)

Distribution: USA (Arizona, Colorado, New Mexico, Utah)

73 USA 76 USA 77 USA

Synonyms: hidden

= Penstemon barbatus subsp. trichander (A.Gray) D.D.Keck; J. Wash. Acad. Sci. 29: 491 (1939)

= Penstemon trichander (A.Gray) Rydb.; Bull. Torrey Bot. Club 33: 151 (1906)

species :

Penstemon barnebyi N.H.Holmgren; Brittonia 31(2): 226 (1979)

Name: Barnebys beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon barrettiae A.Gray; Syn. Fl. N. Amer., ed. 2, 2(1): Suppl. 440 (1886)

Name: Barrett´s beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Dasanthera, sect. Erianthera

species :

Penstemon bicolor (Brandegee) Clokey & D.D.Keck; Bull. S. Calif. Acad. Sci. 38: 12 (1939)

Name: Pinto beardtongue (EN)

Distribution: USA (Arizona, California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon bicolor subsp. roseus Clokey & D.D.Keck; Bull. S. Calif. Acad. Sci. 38: 12 (1939)

= Penstemon palmeri var. bicolor Brandegee; Univ. Calif. Publ. Bot. 6: 360 (1916)

= Penstemon pseudospectabilis subsp. bicolor (Brandegee) D.D.Keck; Amer. Midl. Naturalist 18: 806 (1937)

species :

Penstemon bleaklyi O´Kane & K.D.Heil; Phytoneuron 2014-61: 1 (2014)

Name: Bleakly´s beardtongue (EN)

Distribution: USA (New Mexico: Taos Co.)

77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon bolanius Straw; Brittonia 15: 62 (1963)

Distribution: Mexico (Jalisco, Zacatecas)

79 MEX

species :

Penstemon bracteatus D.D.Keck; Leafl. W. Bot. 1: 82 (1934)

Name: Red Canyon beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon bradburyi Pursh; Fl. Amer. Sept. [Pursh] 2: 738 (1813)

Name: Shell-leaf beardtongue (EN)

Distribution: USA (Colorado, Connecticut, Iowa, Illinois, Indiana, Kansas, Massachusetts, Michigan, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Mexico, Ohio, Oklahoma, South Dakota, Texas, Wisconsin, Wyoming)

73 USA 74 USA 75 USA 77 USA

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Chelone bradburyi (Pursh) Steud.; Nomencl. Bot. [Steudel], ed. 1, 1: 186 (1821)

= Chelone grandiflora Spreng.; Syst. Veg., ed. 16 [Sprengel] 2: 813 (1825), nom. superfl.

= Penstemon grandiflorus Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 53 (1818), nom. superfl.

species :

Penstemon breviculus (D.D.Keck) Nisbet & R.C.Jacks.; Univ. Kansas Sci. Bull. 41: 734 (1960)

Name: Shortstem beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Utah)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon jamesii subsp. breviculus D.D.Keck; Bull. Torrey Bot. Club 65: 241 (1938)

species :

Penstemon brevisepalus Pennell; Man. S.E. Fl. [Small] 1204 (1933), et in Acad. Nat. Sci. Philad. Monogr.1, Scroph. 227 (1935)(descr. ampl.)

Name: Short-sepal beardtongue (EN)

Distribution: USA (Kentucky, Tennessee, Virginia, West Virginia)

75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon buckleyi Pennell; Proc. Acad. Nat. Sci. Philadelphia 73: 486 (1921 publ. 1922)

Name: Buckley´s beardtongue (EN)

Distribution: USA (Colorado, Kansas, Nebraska, New Mexico, Oklahoma, Texas)

73 USA 74 USA 77 USA

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Penstemon amplexicaulis Buckley; Proc. Acad. Nat. Sci. Philadelphia 13: 461 (1861 publ. 1862), non Moench 1794

species :

Penstemon caesius A.Gray; Proc. Amer. Acad. Arts 19: 92 (1883)

Name: San Bernardino beardtongue (EN)

Distribution: USA (S-California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon caespitosus Nutt. ex A.Gray; Proc. Amer. Acad. Arts 6: 66 (1862)

Name: Mat beardtongue (EN)

Distribution: USA (Colorado, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

variant :

var. desertipicti (A.Nelson) N.H.Holmgren; Brittonia 31(1): 104 (1979)

Distribution: USA (Arizona, Utah)

76 USA

Synonyms: hidden

= Penstemon caespitosus subsp. desertipicti (A.Nelson) D.D.Keck; Bull. Torrey Bot. Club 64: 365 (1937)

= Penstemon desertipicti A.Nelson; Univ. Wyoming Publ. Sci., Bot. 1: 130 (1926)

variant :

var. perbrevis (Pennell) N.H.Holmgren; Brittonia 31(1): 104 (1979)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Synonyms: hidden

= Penstemon caespitosus subsp. perbrevis Pennell; Contr. U.S. Natl. Herb. 20: 375 (1920)

species :

Penstemon calcareus Brandegee; Zoe 5: 152 (1903)

Name: Limestone beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon desertorum M.E.Jones; Contr. W. Bot. 12: 59 (1908)

species :

Penstemon californicus (Munz & L M.Johnst.) D.D.Keck; Bull. Torrey Bot. Club 64: 378 (1937)

Name: California beardtongue (EN)

Distribution: USA (California); Mexico (Baja California Norte)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon linarioides var. californicus Munz & I.M.Johnst.; Bull. S. Calif. Acad. Sci. 23: 31 (1924)

species :

Penstemon calycosus Small; Bull. Torrey Bot. Club 25: 470 (1898)

Name: Long-sepal beardtongue (EN)

Distribution: USA (Alabama, Connecticut, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, Vermont)

74 USA 75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon laevigatus subsp. calycosus (Small) R.W.Benn.; Phytologia 9: 57 (1963)

= Penstemon laevigatus var. calycosus (Small) Farw.; Pap. Michigan Acad. Sci. 26(1): 18 (1941)

= Penstemon smallii var. calycosus (Small) Krautter; Contr. Bot. Lab. Morris Arbor. Univ. Pennsylvania 3: 164 (1908)

species :

Penstemon campanulatus (Cav.) Willd.; Sp. Pl., ed. 4 [Willdenow] 3: 228 (1800)

subspecies :

subsp. campanulatus

Distribution: Taiwan [I]; Java [I]; Mexico (Aguascalientes, Chihuahua, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, Mexico State, Michoacán, Morelos, Nayarit, Nuevo León, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

38 tai 42 jaw 79 MEX

Synonyms: hidden

= Chelone angustifolia Kunth; Nov. Gen. Sp. [H.B.K.] 2: 365, t. 173 (1818)

= Chelone campanulata Cav.; Icon. [Cavanilles] 1: 18 (1791)

= Chelone campanuloides Andrews; Bot. Repos. 1: t. 40 (1798)

= Chelone elegans Kunth; Nov. Gen. Sp. [H.B.K.] 2: 364 (1818)

= Penstemon angustifolius (Kunth) F.Dietr.; Nachtr. Vollst. Lex. Gärtn. 6: 91 (1820), nom. illeg.

= Penstemon campanulatus f. pulchellus (Lindl.) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 768 (1894)

= Penstemon campanulatus var. angustifolius (Kunth) Hook.; Bot. Mag. 68: t. 3884 (1841)

= Penstemon elegans (Kunth) F.Dietr.; Nachtr. Vollst. Lex. Gärtn. 6: 91 (1820)

= Penstemon hintonii Straw; Brittonia 15: 61 (1963)

= Penstemon pulchellus Lindl.; Bot. Reg. 14: t. 1138 (1828)

variant :

var. chihuahuensis (Straw) B.L.Turner; Phytoneuron 2010-31: 2 (2010)

Distribution: Mexico (Durango, Sonora, Chihuahua, etc.)

79 MEX

Synonyms: hidden

= Penstemon campanulatus subsp. chihuahuensis Straw; Brittonia 15: 59 (1963)

subspecies :

subsp. subglandulosus (S.S.White) Straw; Brittonia 15: 58 (1963)

Distribution: Mexico (Sonora)

79 MEX

Synonyms: hidden

= Penstemon campanulatus var. subglandulosus S.S.White; J. Arnold Arbor. 28: 440 (1947)

species :

Penstemon canescens (Britton) Britton; Mem. Torrey Bot. Club 5: 291 (1894)

Name: Eastern gray beardtongue (EN)

Distribution: USA (Alabama, Georgia, Illinois, Indiana, Kentucky, Maryland, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, Vermont, West Virginia)

74 USA 75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon brittonorum Pennell ex Beattie; J. Elisha Mitchell Sci. Soc. 45: 276 (1930), nom. subnud.

= Penstemon brittoniorum Pennell; Man. S.E. Fl. [Small] 1204 (1933)

= Penstemon canescens f. brittonorum (Pennell ex Small) Fernald; Rhodora 51: 84 (1949)

= Penstemon canescens f. villicaulis Fernald; Rhodora 51: 83 (1949)

= Penstemon canescens subsp. brittoniorum (Pennell) Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 222 (1935)

species :

Penstemon cardinalis Wooton & Standl.; Contr. U.S. Natl. Herb. 16: 171 (1913)

Name: Cardinal beardtongue (EN)

Distribution: USA (New Mexico)

77 USA

Remarks: subgen. Penstemon, sect. Elmigera

Synonyms: hidden

= Penstemon crassulus Wooton & Standl.; Contr. U.S. Natl. Herb. 16: 172 (1913)

variant :

var. regalis (A.Nelson) C.C.Freeman; PhytoKeys 80: 34 (2017)

Distribution: USA (New Mexico, Texas)

77 USA

Synonyms: hidden

= Penstemon cardinalis subsp. regalis (A.Nelson) Nisbet & Jacks.; Univ. Kansas Sci. Bull. 41(5): 707 (1960)

= Penstemon regalis A.Nelson; Amer. J. Bot. 21: 578 (1934)

species :

Penstemon cardwellii Howell; Fl. N.W. Amer. [Howell] 1: 510 (1901)

Name: Cardwell´s beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon fruticosus subsp. cardwellii (Howell) Piper; Contr. U.S. Natl. Herb. 11: 499 (1906)

species :

Penstemon carnosus Pennell; Ann. Carnegie Mus. 26: 329 (1937)

Name: Fleshy beardtongue (EN)

Distribution: USA (E-Utah)

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon caryi Pennell; Contr. U.S. Natl. Herb. 20: 354 (1920)

Name: Cary´s beardtongue (EN)

Distribution: USA (Montana, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon cedrosensis Krautter; Contr. Bot. Lab. Morris Arbor. Univ. Pennsylvania 3: 129 (1908)

Distribution: Mexico (Cedros Isl.)

79 MEX

species :

Penstemon centranthifolius (Benth.) Benth.; Scroph. Ind. 7 (1835)

Name: Scarlet bugler

Distribution: USA (California); Mexico (Baja California Norte); Bolivia [c]

76 USA 79 MEX 83 bol

Remarks: subgen. Penstemon, sect. Gentianoides

Synonyms: hidden

= Chelone centranthifolia Benth.; Trans. Hort. Soc. London, Ser. 2, 1: 481 (1834 publ. 1835)

= Chelone cheilanthifolia Paxton; Paxton´s Mag. Bot. 2: t. 50 (1836)

= Penstemon brevilabris A.Gray; Proc. Amer. Acad. Arts 17: 229 (1882)

species :

Penstemon cinicola D.D.Keck; Amer. Midl. Naturalist 22: 297 (1939), anglice, et in Publ. Carnegie Inst. Wash. No. 520 (J. Clausen, D. D. Keck & Hiesey, Exper. Stud. Nat. Spec. I.) 265, 294 (1940), latine

Name: Ash beardtongue (EN)

Distribution: USA (N-California, C-Oregon, S-Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon truncatus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 5 (1941)

= Penstemon truncatus f. puberulus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 5 (1941)

species :

Penstemon clevelandii A.Gray; Proc. Calif. Acad. Sci. 11: 94 (1876)

Name: Cleveland´s beardtongue (EN)

Distribution: USA (California); Mexico (Baja California Norte)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Spectabiles

variant :

var. connatus Munz & I.M.Johnst.; Bull. Torrey Bot. Club 49: 357 (1923)

Name: San Jacinto beardtongue (EN)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon clevelandii subsp. connatus (Munz & Johnst.) D.D.Keck; Amer. Midl. Naturalist 18: 811 (1937)

variant :

var. mohavensis (D.D.Keck) McMinn; Man. Calif. Shrubs 511 (1939)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon clevelandii subsp. mohavensis D.D.Keck; Amer. Midl. Naturalist 18: 810 (1937)

species :

Penstemon clutei A.Nelson; Amer. Bot. (Binghamton) 33: 109 (1927)

Name: Sunset Crater beardtongue (EN)

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon pseudospectabilis subsp. clutei (A.Nelson) D.D.Keck; Amer. Midl. Naturalist 18: 806 (1937)

species :

Penstemon cobaea Nutt.; Trans. Amer. Philos. Soc., n. s. 5: 182 (1837)

Name: Cobaea beardtongue (EN)

Distribution: USA (Arkansas, Arizona [I], Colorado [I], Iowa, Illinois [I], Kansas, Missouri, Nebraska, New Mexico [I], Ohio [I], Oklahoma, Texas)

73 USA 74 USA 75 USA 76 USA 77 USA 78 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon grandiflorus F.Dietr.; Neu. Nachtr. Vollst. Lex. Gärtn. 6: 479 (1837), nom. illeg.

= Penstemon hansonii A.Nelson; Univ. Wyoming Publ. Sci., Bot. 1: 129 (1926)

variant :

var. purpureus Pennell; Proc. Acad. Nat. Sci. Philadelphia 73: 490 (1922)

Distribution: USA (Arkansas, Missouri, Oklahoma)

74 USA 75 USA 78 USA

Synonyms: hidden

= Penstemon cobaea subsp. purpureus (Pennell) Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 250 (1935)

species :

Penstemon comarrhenus A.Gray; Proc. Amer. Acad. Arts 12: 81 (1877)

Name: Dusty beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Nevada, Utah)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon compactus (D.D.Keck) Crosswh.; Amer. Midl. Naturalist 77: 6 (1967)

Name: Compact beardtongue (EN)

Distribution: USA (Idaho: Franklin Co., Utah: Cache Co.)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon cyananthus var. compactus (D.D.Keck) Neese

= Penstemon cyananthus subsp. compactus D.D.Keck; Amer. Midl. Naturalist 23: 615 (1940)

species :

Penstemon concinnus D.D.Keck; Amer. Midl. Naturalist 23: 608 (1940)

Name: Tunnel Springs beardtongue (EN)

Distribution: USA (Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon confertus Douglas; Bot. Reg., t. 1260 (1829)

Name: Yellow beardtongue (EN)

Distribution: Canada (Alberta, British Columbia, Saskatchewan); USA (Idaho, Montana, Oregon, Washington State)

71 CDN 73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon confertus var. attenuatus M.E.Jones; Contr. W. Bot. 12: 62 (1908)

= Penstemon confertus var. caeruleopurpureus A.Gray; Proc. Amer. Acad. Arts 6: 72 (1862)

= Penstemon confertus var. rigidus Jeps.; Man. Fl. Pl. Calif. [Jepson] 914 (1925)

= Penstemon confertus var. violaceus Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 344 (1839)

= Penstemon depressus Greene; Leafl. Bot. Observ. Crit. 1: 162 (1906)

= Penstemon lassenianus Greene; Leafl. Bot. Observ. Crit. 1: 164 (1906)

= Penstemon washoensis Greene; Leafl. Bot. Observ. Crit. 1: 163 (1906)

species :

Penstemon confusus M.E.Jones; Zoe 4: 280 (1893)

Name: Owens Valley beardtongue (EN)

Distribution: USA (W-Nevada, E-California)

76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon crandallii A.Heller; Bull. Torrey Bot. Club 26: 354 (1899)

Name: Crandall´s beardtongue (EN)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon suffrutescens Rydb.; Bull. Torrey Bot. Club 31: 503 (1904)

variant :

var. atratus (D.D.Keck) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Synonyms: hidden

= Penstemon crandallii subsp. atratus D.D.Keck; Bull. Torrey Bot. Club 64: 370 (1937)

variant :

var. glabrescens (Pennell) C.C.Freeman; J. Bot. Res. Inst. Texas 11(2): 287 (2017)

Distribution: USA (Colorado, New Mexico)

73 USA 77 USA

Synonyms: hidden

= Penstemon coloradoensis var. glabrescens (Pennell) A.Nelson; Univ. Wyoming Publ. 3: 105 (1937)

= Penstemon crandallii subsp. glabrescens (Pennell) D.D.Keck; Bull. Torrey Bot. Club 64: 369 (1937)

= Penstemon crandallii subsp. taosensis (D.D.Keck) J.T.Kartesz & Gandhi; Phytologia 72: 89 (1992)

= Penstemon crandallii var. taosensis (D.D.Keck) G.T.Nisbet & R.C.Jacks.; Univ. Kansas Sci. Bull. 41: 726 (1960)

= Penstemon glabrescens Pennell; Contr. U.S. Natl. Herb. 20: 375 (1920)

= Penstemon linarioides subsp. taosensis D.D.Keck; Bull. Torrey Bot. Club 64: 373 (1937)

variant :

var. procumbens (Greene) C.C.Freeman; PhytoKeys 80: 34 (2017)

Distribution: USA (Colorado)

73 USA

Synonyms: hidden

= Penstemon crandallii subsp. procumbens (Greene) D.D.Keck; Bull. Torrey Bot. Club 64: 369 (1937)

= Penstemon procumbens Greene; Pl. Baker. [Greene] 3: 23 (1901)

variant :

var. ramaleyi (A.Nelson) C.C.Freeman; PhytoKeys 80: 35 (2017)

Distribution: USA (Colorado)

73 USA

Synonyms: hidden

= Penstemon ramaleyi A.Nelson; Univ. Wyoming Publ. 3: 106 (1937)

species :

Penstemon curtiflorus (D.D.Keck) N.H.Holmgren; Brittonia 70(1): 126, figs. 6, 7k-o (2017)

Name: Cutleaf beardtongue (EN)

Distribution: USA (Oregon)

73 USA

Synonyms: hidden

= Penstemon richardsonii subsp. curtiflorus D.D.Keck; Brittonia 8: 249 (1957)

= Penstemon richardsonii var. curtiflorus (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 401 (1959)

species :

Penstemon cusickii A.Gray; Proc. Amer. Acad. Arts 16: 106 (1881)

Name: Cusick´s beardtongue (EN)

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon macbridei A.Nelson; Bot. Gaz. 53: 272 (1912)

species :

Penstemon cyananthus Hook.; Bot. Mag. t. 4464 (1851)

Name: Wasatch beardtongue (EN)

Distribution: USA (Idaho, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon glaber f. cyananthus (Hook.) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 766 (1894)

= Penstemon glaber var. cyananthus (Hook.) A.Gray; Proc. Amer. Acad. Arts 6: 60 (1862)

variant :

var. judyae N.D.Atwood; Utah Fl., ed. 3: 622 (2003)

Distribution: USA (Utah)

76 USA

variant :

var. subglaber (A.Gray) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Name: Wasatch beardtongue (EN)

Distribution: USA (Idaho, Montana, Utah, Wyoming)

73 USA 76 USA

Synonyms: hidden

= Penstemon cyananthus subsp. subglaber (A.Gray) Pennell

= Penstemon fremontii var. subglaber A.Gray; Syn. Fl. N. Amer. 2(1): 262 (1878)

= Penstemon holmgrenii S.L.Clark; Great Basin Naturalist 37(1): 100 (1977), et l. c. 37(2): 258 (1977), nom. nov., without replaced synonym page

species :

Penstemon cyaneus Pennell; Contr. U.S. Natl. Herb. 20: 351 (1920)

Name: Blue beardtongue (EN)

Distribution: USA (Idaho, Montana, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon cyanocaulis Payson; Bot. Gaz. 60: 380 (1915)

Name: Blue-stem beardtongue (EN)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon cyathophorus Rydb.; Bull. Torrey Bot. Club 31: 643 (1904)

Name: Sagebrush beardtongue (EN)

Distribution: USA (Colorado, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon dasyphyllus A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 112 (1858 publ. 1859)

Name: Thick-leaf beardtongue (EN)

Distribution: USA (SE-Arizona, SW-New Mexico, W-Texas); Mexico (Chihuahua, Coahuila, Nuevo León, San Luis Potosi, Sonora)

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Chamaeleon

Synonyms: hidden

= Penstemon pringlei S.Watson; Proc. Amer. Acad. Arts 23: 281 (1888)

= Penstemon stenophyllus var. dasyphyllus (A.Gray) A.Gray; Syn. Fl. N. Amer., ed. 2, 2(1): 441 (1886)

species :

Penstemon davidsonii Greene; Pittonia 2: 241 (1892)

Name: Davidson´s beardtongue (EN)

Distribution: Canada (British Columbia); USA (California, Nevada, Oregon, Washington State)

71 CDN 73 USA 76 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon menziesii f. davidsonii (Greene) G.N.Jones; Univ. Wash. Publ. Biol. 5: 226 (1936)

= Penstemon menziesii subsp. davidsonii (Greene) Pennell & D.D.Keck; Publ. Carnegie Inst. Wash. 520: 295 (1940)

= Penstemon menziesii subsp. thompsonii Pennell & D.D.Keck in Abrams; Ill. Fl. Pacific States 3: 768 (1951)

variant :

var. menziesii (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 379 (1959)

Name: Menzies´ beardtongue (EN)

Distribution: Canada (British Columbia); USA (Oregon, Washington State)

71 CDN 73 USA

Synonyms: hidden

= Penstemon davidsonii subsp. menziesii D.D.Keck; Brittonia 8: 247 (1957)

= Penstemon douglasii Hook.; Fl. Bor.-Amer. [Hooker] 2: 98 (1838)

= Penstemon fruticosus var. douglasii (Hook.) C.K.Schneid.; Ill. Handb. Laubholzk. [C.K.Schneider] 2: 615 (1911)

= Penstemon menziesii f. douglasii (Hook.) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 765 (1894)

= Penstemon menziesii var. douglasii (Hook.) A.Gray; Proc. Amer. Acad. Arts 6: 57 (1862)

variant :

var. praeteritus Cronquist; Leafl. W. Bot. 10: 129 (1964)

Name: Timberline beardtongue (EN)

Distribution: USA (Nevada, Oregon)

73 USA 76 USA

species :

Penstemon deamii Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 212 (1935)

Name: Deam´s beardtongue (EN)

Distribution: USA (Illinois, Indiana)

74 USA 75 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon laevigatus var. deamii (Pennell) R.W.Benn.; Phytologia 9: 57 (1963)

species :

Penstemon deaveri Crosswh.; Amer. Midl. Naturalist 77: 6, 38 (1967)

Name: Mt. Graham beardtongue (EN)

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon arizonicus (A.Gray) A.Heller; Bull. Torrey Bot. Club 26: 591 (1899)

= Penstemon hallii var. arizonicus A.Gray; Syn. Fl. N. Amer. 2(1): 263 (1878)

= Penstemon virgatus subsp. arizonicus (A.Gray) D.D.Keck; J. Wash. Acad. Sci. 29: 491 (1939)

species :

Penstemon debilis O´Kane & J.L.Anderson; Brittonia 39(4): 412 (1987)

Name: Parachute beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon degeneri Crosswh.; Amer. Midl. Naturalist 74: 434 (1965)

Name: Degeners beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon deustus Douglas; Edwards´s Bot. Reg., t. 1318 (1830) ex Lindl.

Name: Scabland beardtongue (EN)

Distribution: USA (California, Idaho, Montana, Nevada, Oregon, Washington State, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon deustus var. savagei L.F.Hend.; Rhodora 33: 206 (1931)

= Penstemon ilicifolius Nutt. ex Benth.; Prodr. [A.P. de Candolle] 10: 593 (1846)

variant :

var. pedicellatus M.E.Jones; Zoe 4: 281 (1893)

Distribution: USA (California, Nevada, Oregon, Utah)

73 USA 76 USA

Synonyms: hidden

= Penstemon deustus subsp. heterander (Torr. & A.Gray) Pennell & D.D.Keck; Amer. Midl. Naturalist 23(3): 603 (1940)

= Penstemon deustus var. heterander (Torr. & A.Gray) M.Peck; Man. Pl. Oregon 642 (1941)

= Penstemon heterander Torr. & A.Gray; Pacif. Railr. Rep. 2(1), Bot. [Beckwith & Gunnison]: 123 (1857)

variant :

var. suffrutescens L.F.Hend.; Rhodora 33: 206 (1931)

Distribution: USA (California, Oregon)

73 USA 76 USA

variant :

var. variabilis (Suksd.) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 380 (1959)

Name: Scabland beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Synonyms: hidden

= Penstemon deustus subsp. variabilis (Suksd.) Pennell & D.D.Keck; Amer. Midl. Naturalist 23: 602 (1940)

= Penstemon paniculatus Howell; Fl. N.W. Amer. [Howell] 513 (1901)

= Penstemon variabilis Suksd.; Deutsche Bot. Monatsschr. 18: 153 (1900)

species :

Penstemon digitalis Nutt.; Trans. Amer. Philos. Soc., n. s. 5: 181 (1837)

Name: Tall white beardtongue (EN)

Distribution: Germany [I]; Canada (New Brunswick, Nova Scotia, Ontario, Québec); USA (Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, Nebraska, New Hampshire, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia)

11 ger 72 CDN 74 USA 75 USA 77 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Chelone digitalis (Nutt.) Sweet; Brit. Fl. Gard. [Sweet] 2: t. 120 (1825)

= Penstemon alluviorum Pennell; Man. S.E. Fl. [Small] 1203 (1933), et in Acad. Nat. Sci. Philad. Monogr.1, Scroph. 210 (1935), descr. ampl.

= Penstemon digitalis f. baueri Steyerm.; Rhodora 43: 663 (1941)

= Penstemon digitalis var. albidus Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 345 (1839)

= Penstemon digitalis var. latifolius Regel; Index Sem. (St. Petersburg [Petropolitanus]) 1866: 95 (1867)

= Penstemon laevigatus subsp. alluviorum (Pennell) R.W.Benn.; Phytologia 9: 57 (1963)

= Penstemon laevigatus subsp. digitalis (Nutt.) R.W.Benn.; Phytologia 9: 57 (1963)

= Penstemon laevigatus var. digitalis (Nutt.) A.Gray; Syn. Fl. N. Amer. 2(1): 268 (1878)

species :

Penstemon diphyllus Rydb.; Mem. New York Bot. Gard. 1: 349 (1900)

Name: Twoleaf beardtongue (EN)

Distribution: USA (Idaho, Montana, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon triphyllus subsp. diphyllus (Rydb.) D.D.Keck; Univ. Calif. Publ. Bot. 16: 422 (1932)

species :

Penstemon discolor D.D.Keck; Bull. Torrey Bot. Club 64: 379 (1937)

Name: Catalina beardtongue (EN)

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon dissectus Elliott; Sketch Bot. S. Carolina [Elliott] 2: 129 (1822)

Name: Dissected beardtongue (EN)

Distribution: USA (E-Georgia)

78 USA

Remarks: subgen. Penstemon, sect. Dissecti

species :

Penstemon distans N.H.Holmgren; Brittonia 32(3): 326 (1980)

Name: Mt. Trumbull beardtongue (EN)

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon dolius M.E.Jones; Contr. U.S. Natl. Herb. 20: 341 (1920)

Name: Jones´ beardtongue (EN)

Distribution: USA (Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon duchesnensis (N.H.Holmgren) Neese; Great Basin Naturalist 46(3): 459 (1986)

Name: Duchesne beardtongue (EN)

Distribution: USA (Utah: Duchesne Co.)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon dolius var. duchesnensis N.H.Holmgren; Brittonia 31(2): 219 (1979)

species :

Penstemon dugesii Pérez-Calix & Zacarías; Phytotaxa 447(3): 210 (2020)

Distribution: Mexico (Guanajuato)

79 MEX

species :

Penstemon eatonii A.Gray; Proc. Amer. Acad. Arts 8: 395 (1872)

Name: Firecracker beardtongue (EN)

Distribution: USA (Arizona, S-California, Colorado, Idaho, New Mexico, Nevada, Utah, Wyoming)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Elmigera

Synonyms: hidden

= Penstemon amplus A.Nelson; Amer. J. Bot. 25: 115 (1938)

= Penstemon centranthifolius S.Watson; Botany (Fortieth Parallel) 219 (1871), nom. illeg.

variant :

var. exsertus (A.Nelson) C.C.Freeman; PhytoKeys 80: 35 (2017)

Distribution: USA (Arizona)

76 USA

Synonyms: hidden

= Penstemon eatonii subsp. exsertus (A.Nelson) D.D.Keck; J. Wash. Acad. Sci. 29: 491 (1939)

= Penstemon exsertus A.Nelson; Amer. J. Bot. 18: 438 (1931)

variant :

var. undosus M.E.Jones; Proc. Calif. Acad. Sci., Ser. 2, 5: 715 (1895)

Distribution: USA (Arizona, California, Colorado, New Mexico, Nevada, Utah)

73 USA 76 USA 77 USA

Synonyms: hidden

= Penstemon coccinatus Rydb.; Bull. Torrey Bot. Club 36: 691 (1909)

= Penstemon eatonii subsp. undosus (M.E.Jones) D.D.Keck; J. Wash. Acad. Sci. 29: 491 (1939)

= Penstemon munzii I.M.Johnst.; Bull. Torrey Bot. Club 49: 40 (1922)

species :

Penstemon elegantulus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 14 (1941)

Name: Rockvine beardtongue (EN)

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon ellipticus Coult. & Fisher; Bot. Gaz. 18: 302 (1893)

Name: Rocky ledge beardtongue (EN)

Distribution: Canada (Alberta, British Columbia); USA (Idaho, Montana, Washington State, Wyoming)

71 CDN 73 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon davidsonii var. ellipticus (J.M.Coult. & Fisher) B.Boivin; Naturaliste Canad. 93: 1062 (1967)

species :

Penstemon eriantherus Pursh; Fl. Amer. Sept. [Pursh] 2: 737 (1813)

Name: Crested-tongue beardtongue (EN)

Distribution: Canada (Alberta, British Columbia); USA (Colorado, Idaho, Montana, North Dakota, Nebraska, South Dakota, Washington State, Wyoming)

71 CDN 73 USA 74 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Chelone cristata (Nutt.) Sreng.; Syst. Veg., ed. 16 [Sprengel] 2: 813 (1825)

= Chelone erianthera (Nutt. ex Pursh) Steud.; Nomencl. Bot. [Steudel], ed. 1, 1: 186 (1821)

= Penstemon cristatus Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 52 (1818)

= Penstemon eriantherus var. grandis Pennell & D.D.Keck; Bull. Torrey Bot. Club 65: 251 (1938)

= Penstemon eriantherus var. saliens (Rydb.) Pennell; Contr. U.S. Natl. Herb. 20: 343 (1920)

= Penstemon saliens Rydb.; Mem. New York Bot. Gard. 1: 344 (1900)

variant :

var. argillosus M.E.Jones; Contr. W. Bot. 12: 62 (1908)

Distribution: USA (Oregon)

73 USA

Synonyms: hidden

= Penstemon dayanus Howell; Fl. N.W. Amer. [Howell] 1: 511 (1901)

= Penstemon whitedii subsp. dayanus (Howell) D.D.Keck; Bull. Torrey Bot. Club 65: 254 (1938)

= Penstemon whitedii var. dayanus (Howell) M.Peck; Man. Pl. Oregon 647 (1941)

variant :

var. cleburnei (M.E.Jones) Dorn; Vasc. Pl. Wyoming 300 (1988)

Name: Cleburn´s beardtongue (EN)

Distribution: USA (Utah, Wyoming)

73 USA 76 USA

Synonyms: hidden

= Penstemon cleburni M.E.Jones; Contr. W. Bot. 12: 62 (1908)

variant :

var. redactus Pennell & D.D.Keck; Bull. Torrey Bot. Club 65: 252 (1938)

Name: Longsac beardtongue (EN)

Distribution: USA (Idaho, Montana, Oregon)

73 USA

Synonyms: hidden

= Penstemon whitedii subsp. tristis Pennell & D.D.Keck; Bull. Torrey Bot. Club 65: 254 (1938)

variant :

var. whitedii (Piper) A.Nelson; Bot. Gaz. 54: 148 (1912)

Name: Whited´s beardtongue (EN)

Distribution: USA (Washington State)

73 USA

Synonyms: hidden

= Penstemon whitedii Piper; Bot. Gaz. 22: 490 (1896)

species :

Penstemon euglaucus English; Proc. Biol. Soc. Washington 41: 197 (1928)

Name: Glaucous beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon eximius D.D.Keck; Amer. Midl. Naturalist 18: 798 (1937)

Distribution: Mexico (Baja California Norte, Baja California Sur)

79 MEX

species :

Penstemon fasciculatus A.Gray; Proc. Amer. Acad. Arts 21: 403 (1886)

Distribution: Mexico (Chihuahua, Sonora)

79 MEX

species :

Penstemon fendleri Torr. & A.Gray; Pacif. Railr. Rep. 2(4), ed. 2 [Pope]: 168 (1857)

Name: Fendler´s beardtongue (EN)

Distribution: USA (Arizona, Colorado, Kansas, New Mexico, Oklahoma, Texas); Mexico (Chihuahua, Coahuila)

73 USA 74 USA 76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon filiformis (D.D.Keck) D.D.Keck; Ill. Fl. Pacific States 3: 761 (1951)

Name: Threadleaf beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon laetus subsp. filiformis D.D.Keck; Univ. Calif. Publ. Bot. 16: 394 (1932)

= Penstemon laetus var. filiformis (D.D.Keck) McMinn; Man. Calif. Shrubs 517 (1939)

species :

Penstemon filisepalis Straw; Bol. Soc. Bot. México 27: 14 (1962)

Distribution: Mexico (Chihuahua)

79 MEX

species :

Penstemon flavescens Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 95: 4 (1942)

Name: High mountain beardtongue (EN)

Distribution: USA (Idaho, Montana)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon floribundus Danley; Brittonia 37(3): 321 (1985)

Name: Cordelia beardtongue (EN)

Distribution: USA (Nevada: Humboldt Co.)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon floridus Brandegee; Bot. Gaz. 27: 454 (1899)

Name: Panamint beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

variant :

var. austini (Eastw.) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Name: Austin´s beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Synonyms: hidden

= Penstemon austini Eastw.; Bull. Torrey Bot. Club 32: 206 (1905)

= Penstemon floridus subsp. austini (Eastw.) D.D.Keck; Amer. Midl. Naturalist 18: 803 (1937)

species :

Penstemon flowersii Neese & S.L.Welsh; Great Basin Naturalist 43(3): 429 (1983)

Name: Flowers´ beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon franklinii S.L.Welsh; Rhodora 95(883-884): 414 (1993)

Name: Franklin´s beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon fremontii Torr. & A.Gray; Proc. Amer. Acad. Arts 6: 60 (1862)

Name: Fremont´s beardtongue (EN)

Distribution: USA (Colorado, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon glaber var. fremontii (Torr. & A.Gray) M.E.Jones; Contr. W. Bot. 12: 62 (1908)

= Penstemon fremontii var. parryi A.Gray ex S.Watson; Botany (Fortieth Parallel) 218 (1871)

species :

Penstemon fruticiformis Coville; Contr. U.S. Natl. Herb. 4: 170 (1893)

Name: Death Valley beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon fruticiformis var. spiciformis Jeps.; Man. Fl. Pl. Calif. [Jepson] 912 (1925)

variant :

var. amargosae (D.D.Keck) N.H.Holmgren; Brittonia 44(4): 481 (1992)

Distribution: USA (California, Nevada)

76 USA

Synonyms: hidden

= Penstemon fruticiformis subsp. amargosae D.D.Keck; Amer. Midl. Naturalist 18: 801 (1937)

species :

Penstemon fruticosus (Pursh) Greene; Pittonia 2: 239 (1892)

Name: Shrubby beardtongue (EN)

Distribution: Canada (British Columbia); USA (Idaho, Montana, Oregon, Washington State, Wyoming)

71 CDN 73 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Apentostera secundiflora Raf.; New Fl. [Rafinesque] 2: 72 (1836)

= Dasanthera fruticosa (Pursh) Raf.; Amer. Monthly Mag. & Crit. Rev. 267 (1818)

= Gerardia fruticosa Pursh; Fl. Amer. Sept. [Pursh] 2: 423, t. 18 (1813)

= Penstemon crassifolius Lindl.; Edwards´s Bot. Reg. 24: t. 16 (1838)

= Penstemon fruticosus var. crassifolius (Lindl.) Krautter; Contr. Bot. Lab. Morris Arbor. Univ. Pennsylvania 3: 100 (1908)

= Penstemon lewisii Benth.; Prodr. [A.P. de Candolle] 10: 321 (1846)

= Penstemon menziesii Hook.; Fl. Bor.-Amer. [Hooker] 2: 98 (1838), nom. superfl.

= Penstemon menziesii var. crassifolius (Lindl.) Schelle; Handb. Laubholzben. [Beissner et al.] 432 (1903)

= Penstemon menziesii var. lewisii (Benth.) A.Gray; Proc. Amer. Acad. Arts 6: 56 (1862)

= Penstemon menziesii var. peduncularis (Nutt. ex Benth.) Schelle; Handb. Laubholzben. [Beissner et al.] 432 (1903)

= Penstemon peduncularis Nutt. ex A.DC.; Prodr. [A.P. de Candolle] 10: 593 (1846)

variant :

var. scouleri (Lindl.) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 385 (1959)

Distribution: Canada (Alberta, British Columbia); USA (Idaho, Washington State)

71 CDN 73 USA

Synonyms: hidden

= Chelone scouleri Douglas ex Lindl.; Edwards´s Bot. Reg. 15: t. 1277 (1829), pro syn.

= Penstemon fruticosus subsp. scouleri (Douglas) Pennell & D.D.Keck; Ill. Fl. Pacific States 3: 465 (1951)

= Penstemon menziesii f. scouleri (Douglas) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 765 (1894)

= Penstemon menziesii var. scouleri (Douglas) A.Gray; Proc. Amer. Acad. Arts 6: 57 (1862)

= Penstemon scouleri Douglas; Edwards´s Bot. Reg. 15: t. 1277 (1829)

variant :

var. serratus (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 385 (1959)

Distribution: USA (Idaho, Oregon, Washington State)

73 USA

Synonyms: hidden

= Penstemon fruticosus subsp. serratus D.D.Keck; Ill. Fl. Pacific States 3: 765 (1951)

species :

Penstemon gairdneri Hook.; Fl. Bor.-Amer. [Michaux] 2: 99 (1803)

Name: Gairdner´s beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon gairdneri subsp. hians (Piper) D.D.Keck; Amer. Midl. Naturalist 23: 597 (1940)

= Penstemon gairdneri var. hians Piper; Bull. Torrey Bot. Club 27: 396 (1900)

= Penstemon hians (Piper) I.M.Johnst.; Contr. Gray Herb. 68: 92 (1923)

variant :

var. oreganus A.Gray; Syn. Fl. N. Amer., ed. 2, 2(1): 441 (1886)

Name: Gairdner´s beardtongue (EN)

Distribution: USA (C-Idaho, E-Oregon)

73 USA

Synonyms: hidden

= Penstemon gairdneri subsp. oreganus (A.Gray) D.D.Keck; Amer. Midl. Naturalist 23: 596 (1940)

= Penstemon oreganus (A.Gray) Howell; Fl. N.W. Amer. [Howell] 515 (1901)

= Penstemon puberulentus Rydb.; Fl. Rocky Mts. 774 (1917)

species :

Penstemon galloensis G.L.Nesom; Phytologia 71(5): 335 (1991 publ. 1992)

Distribution: Mexico (Coahuila, Nuevo León)

79 MEX

species :

Penstemon gentianoides (Kunth) Poir.; Dict. Sci. Nat. [F.Cuvier], éd. 2, 38: 385 (1825)

Distribution: Mexico (Aguascalientes, Chiapas, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Hidalgo, Jalisco, Mexico State, Michoacán, Morelos, Nuevo León, Oaxaca, Puebla, Queretaro, Tamaulipas, Tlaxcala, Veracruz, Zacatecas); Guatemala; Honduras; Costa Rica [c]

79 MEX 80 cos GUA HON

Synonyms: hidden

= Chelone gentianoides Kunth; Nov. Gen. Sp. [H.B.K.] 2: 364, t. 172 (1818)

= Penstemon skutchii Straw; Bol. Soc. Bot. México 27: 13 (1962)

species :

Penstemon gentryi Standl.; Publ. Field Mus. Nat. Hist., Bot. Ser. 17: 209 (1937)

Distribution: Mexico (Chihuahua, Sonora)

79 MEX

species :

Penstemon gibbensii Dorn; Brittonia 34(3): 334 (1982)

Name: Gibbens´ beardtongue (EN)

Distribution: USA (Colorado, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon glaber Pursh; Fl. Amer. Sept. [Pursh] 2: 738 (1813)

Name: Southern smooth beardtongue (EN)

Distribution: USA (Colorado, Montana, North Dakota, Nebraska, South Dakota, Wyoming); Mexico (Chihuahua)

73 USA 74 USA 79 MEX

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon alpinus f. riparius (A.Nelson) Pennell; Contr. U.S. Natl. Herb. 20: 349 (1920)

= Penstemon glaber var. occidentalis A.Gray; Proc. Amer. Acad. Arts 6: 60 (1862)

= Penstemon glaber var. stenosepalus Regel; Gartenflora 24: 34 (1875)

= Penstemon gordonianus A.Gray; Pacif. Railr. Rep. 12(2), Bot. [Stevens]: 45 (1860), orth. var.

= Penstemon gordonii Hook.; Bot. Mag. 73: t. 4319 (1847)

= Penstemon riparius A.Nelson; Bull. Torrey Bot. Club 25: 379 (1898)

variant :

var. alpinus (Torr.) A.Gray; Proc. Amer. Acad. Arts 6: 60 (1862)

Name: Alpine sawsepal beardtongue (EN)

Distribution: USA (Colorado, Wyoming)

73 USA

Synonyms: hidden

= Chelone alpina Spreng.; Syst. Veg., ed. 16 [Sprengel] 4(2) (Cur. Post.): 235 (1827)

= Penstemon alpinus subsp. magnus (Pennell) Penland; Man. Pl. Colorado 496, 641 (1954)

= Penstemon alpinus Torr.; Ann. Lyceum Nat. Hist. New York 1: 35 (1824)

= Penstemon magnus Pennell; Contr. U.S. Natl. Herb. 20: 346 (1920)

= Penstemon oreophilus Rydb.; Bull. Torrey Bot. Club 31: 642 (1905)

variant :

var. brandegeei (Porter) C.C.Freeman; Phytologia 60(2): 105 (1986)

Name: Brandegee´s beardtongue (EN)

Distribution: USA (Colorado, New Mexico)

73 USA 77 USA

Synonyms: hidden

= Penstemon alpinus subsp. brandegeei (Porter) Penland; Man. Pl. Colorado 496, 641 (1954)

= Penstemon brandegeei (Porter) Porter ex Rydb.; Mem. New York Bot. Gard. 1: 343 (1900)

= Penstemon cyananthus var. brandegeei Porter; Syn. Fl. Colorado 91 (1874)

species :

Penstemon glandulosus Douglas ex Lindl.; Bot. Reg., t. 1262 (1829)

Name: Sticky-stem beardtongue (EN)

Distribution: USA (Idaho, Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon staticifolius Lindl.; Edwards´s Bot. Reg., t. 1770 (1835)

variant :

var. chelanensis (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 388 (1959)

Distribution: USA (Washington State)

73 USA

Synonyms: hidden

= Penstemon glandulosus subsp. chelanensis D.D.Keck; Ill. Fl. Pacific States 3: 764 (1951)

species :

Penstemon glaucinus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 10 (1941)

Name: Blueleaf beardtongue (EN)

Distribution: USA (Oregon: Klamath Co., Lake Co.)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon globosus (Piper) Pennell & D.D.Keck; Publ. Carnegie Inst. Wash. No. 520 (J. Clausen, D. D. Keck & Hiesey, Exper. Stud. Nat. Spec. 1.) 294 (1940)

Name: Globe beardtongue (EN)

Distribution: USA (Idaho, Montana, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon confertus var. globosus Piper; Bull. Torrey Bot. Club 27: 397 (1900)

species :

Penstemon goodrichii N.H.Holmgren; Brittonia 30(4): 416 (1978)

Name: Lapoint beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon gormanii Greene; Ottawa Naturalist 16: 39 (1902)

Name: Gorman´s beardtongue (EN)

Distribution: Alaska; Canada (British Columbia, Northern Territories, Yukon)

70 ASK CDN 71 CDN

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon gracilentus A.Gray; Pacif. Railr. Rep. 6(3, no. 2), Bot. [Williamson & Abbot]: 82 (1857)

Name: Slender beardtongue (EN)

Distribution: USA (California, Nevada, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon gracilentus var. ursorum Jeps.; Man. Fl. Pl. Calif. [Jepson] 916 (1925)

species :

Penstemon gracilis Nutt.; Gen. N. Amer. Pl. [Nuttall] 2: 52 (1818)

Name: Lilac beardtongue (EN)

Distribution: Canada (Alberta, British Columbia, Manitoba, Ontario, Saskatchewan); USA (Colorado, Iowa, Indiana, Michigan, Minnesota, Montana, North Dakota, Nebraska, New Mexico, South Dakota, Wisconsin, Wyoming)

71 CDN 72 CDN 73 USA 74 USA 75 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Chelone gracilis (Nutt.) Spreng.; Syst. Veg., ed. 16 [Sprengel] 2: 813 (1825)

= Penstemon digitalis var. glaucus (Graham) Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 345 (1839)

= Penstemon digitalis var. gracilis (Nutt.) Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 345 (1839)

= Penstemon glaucus Graham; Edinburgh New Philos. J. 348 (1829)

= Penstemon gracilis f. scoggannii B.Boivin; Phytologia 22(5): 331 (1972)

= Penstemon gracilis subsp. wisconsinensis (Pennell) Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 571 (1935)

= Penstemon gracilis var. wisconsinensis (Pennell) Fassett; Spring Fl. Wisconsin, ed. 2, 144 (1938)

= Penstemon pubescens var. gracilis (Nutt.) A.Gray; Proc. Amer. Acad. Arts 6: 69 (1862)

= Penstemon wisconsinensis Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 234 (1935)

species :

Penstemon grahamii D.D.Keck; Ann. Carnegie Mus. 26: 331 (1937)

Name: Uinta Basin beardtongue (EN)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon griffinii A.Nelson; Bot. Gaz. 56: 70 (1913)

Name: Griffin´s beardtongue (EN)

Distribution: USA (Colorado, New Mexico)

73 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon grinnellii Eastw.; Bull. Torrey Bot. Club 32: 207 (1905)

Name: Grinnell´s beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon grinnellii subsp. scrophularioides (M.E.Jones) Munz; Aliso 4: 99 (1958)

= Penstemon grinnellii var. scrophularioides (M.E.Jones) N.H.Holmgren; Brittonia 44(4): 482 (1992)

= Penstemon palmeri var. grinnellii (Eastw.) Munz & I.M.Johnst.; Bull. Torrey Bot. Club 49: 42 (1922)

= Penstemon scrophularioides M.E.Jones; Contr. W. Bot. 12: 65 (1908)

species :

Penstemon guadalupensis A.Heller; Contr. Herb. Franklin Marshall Coll. 1: 92, t. 7 (1895)

Name: Guadalupe beardtongue (EN)

Distribution: USA (Texas)

77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon guadalupensis subsp. ernestii Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 252 (1935)

= Penstemon guadalupensis var. ernestii (Pennell) Cory; Rhodora 38: 407 (1936)

species :

Penstemon hallii A.Gray; Proc. Amer. Acad. Arts 6: 70 (1862)

Name: Hall´s beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon bakeri Greene; Pittonia 4: 318 (1901)

species :

Penstemon harbourii A.Gray; Proc. Amer. Acad. Arts 6: 71 (1862)

Name: Harbour´s beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon harringtonii Penland; Madroño 14: 153 (1958)

Name: Harrington´s beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon hartwegii Benth.; Pl. Hartw. [Bentham] 48 (1846)

Distribution: Mexico (Hidalgo, Mexico State, Oaxaca, Queretaro, San Luis Potosi, Veracruz); Colombia [I]; Bolivia [c]

79 MEX 82 clm 83 bol

Synonyms: hidden

= Penstemon gentianoides Lindl.; Edwards´s Bot. Reg. 24: t. 3 (1838), nom. illeg.

= Penstemon giganteus C.Morren; Ann. Soc. Roy. Agric. Gand 2: 143 (1846)

= Penstemon hartwegii var. hybridus Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 767 (1894)

= Penstemon puniceus Lilja; Linnaea 17: 111 (1843)

species :

Penstemon havardii A.Gray; Proc. Amer. Acad. Arts 20: 306 (1885)

Name: Big Bend beardtongue (EN)

Distribution: USA (Texas); Mexico (Chihuahua, Coahuila, Nuevo León)

77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon haydenii S.Watson ex Coult.; Bot. Gaz. 16: 311 (1891)

Name: Blowout beardtongue (EN)

Distribution: USA (Nebraska, Wyoming)

73 USA 74 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon henricksonii Straw; Madroño 23(5): 263 (1976)

Distribution: Mexico (Coahuila)

79 MEX

species :

Penstemon hesperius M.E.Peck; Torreya 32: 152 (1932)

Distribution: USA (Washington State, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon. Often included in P. rydbergii

species :

Penstemon heterodoxus A.Gray; Syn. Fl. N. Amer. 2(1): 269 (1878)

Name: Sierra beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon confertus var. geniculatus (Greene) Jeps.; Man. Fl. Pl. Calif. [Jepson] 914 (1925)

= Penstemon fremontii A.Gray; Bot. California [W.H.Brewer] 1: 622 (1876), nom. illeg.

= Penstemon geniculatus Greene; Pittonia 3: 310 (1898)

= Penstemon glastifolius Greene; Leafl. Bot. Observ. Crit. 1: 162 (1906)

= Penstemon procerus f. geniculatus (Greene) Smiley; Univ. Calif. Publ. Bot. 9: 325 (1921)

variant :

var. cephalophorus (Greene) N.H.Holmgren; Brittonia 44(4): 482 (1992)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon cephalophorus Greene; Leafl. Bot. Observ. Crit. 1: 79 (1904)

= Penstemon heterodoxus subsp. cephalophorus (Greene) D.D.Keck; Amer. Midl. Naturalist 33: 165 (1945)

variant :

var. shastensis (D.D.Keck) N.H.Holmgren; Brittonia 44(4): 482 (1992)

Name: Shasta beardtongue (EN)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon shastensis D.D.Keck; Amer. Midl. Naturalist 33: 165 (1945)

species :

Penstemon heterophyllus Lindl.; Edwards´s Bot. Reg. 22: t. 1899 (1836)

Name: Bunchleaf beardtongue (EN)

Distribution: USA (W-California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon leucanthus Greene; Pittonia 1: 72 (1887)

variant :

var. australis Munz & I.M.Johnst.; Bull. S. Calif. Acad. Sci. 23: 40 (1924)

Name: Foothill beardtongue (EN)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon heterophyllus subsp. australis (Munz & Johnst.) D.D.Keck; Univ. Calif. Publ. Bot. 16: 411 (1932)

variant :

var. purdyi (D.D.Keck) McMinn; Man. Calif. Shrubs 518 (1939)

Name: Purdy´s beardtongue (EN)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon heterophyllus subsp. purdyi D.D.Keck; Univ. Calif. Publ. Bot. 16: 409, fig. 15 (1932)

= Penstemon heterophyllus subsp. spinulosus (Wooton & Standl.) D.D.Keck; Univ. Calif. Publ. Bot. 16: 410 (1932)

= Penstemon spinulosus Wooton & Standl.; Contr. U.S. Natl. Herb. 16: 173 (1913)

species :

Penstemon hidalgensis Straw; Brittonia 15: 51 (1963)

Distribution: Mexico (Aguascalientes, Hidalgo, Jalisco, Oaxaca, Queretaro, San Luis Potosi, Zacatecas); Ecuador [I]

79 MEX 83 ecu

species :

Penstemon hirsutus (L.) Willd.; Sp. Pl., ed. 4 [Willdenow] 3: 227 (1800)

Name: Northeastern beardtongue (EN)

Distribution: Canada (Ontario, Québec); USA (Connecticut, District of Columbia, Delaware, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Tennessee, Virginia, Vermont, Wisconsin, West Virginia)

72 CDN 74 USA 75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Bartramia concinna Salisb.; Prodr. Stirp. Chap. Allerton 99 (1796)

= Chelone hirsuta L.; Sp. Pl. [Linnaeus] 2: 611 (1753), nom. cons.

= Chelone pubescens Sweet; Hort. Brit. [Sweet] 305 (1827)

= Penstemon amplexicaulis Moench; Methodus [Moench] 442 (1794)

= Penstemon digitalis var. pubescens (Aiton) Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 345 (1839)

= Penstemon hirsutus f. albiflorus Farw.; Amer. Midl. Naturalist 11: 68 (1928)

= Penstemon latifolius Hoffmanns.; Verz. Pfl.-Kult. 98 (1824)

= Penstemon longifolius Scheele; Linnaea 21: 764 (1848)

= Penstemon mackayanus Knowles & Westc.; Fl. Cab. 2: 117 (1838)

= Penstemon pentstemon (L.) Britton; Mem. Torrey Bot. Club 2: 201 (1891)

= Penstemon pubescens Aiton; Hort. Kew. [W.Aiton] 2: 360 (1789)

= Penstemon pubescens var. angustifolius Aiton; Hort. Kew. [W.Aiton] 2: 360 (1789)

= Penstemon pubescens var. latifolia Aiton; Hort. Kew. [W.Aiton] 2: 360 (1789)

species :

Penstemon humilis Nutt. ex A.Gray; Proc. Amer. Acad. Arts 6: 69 (1862)

Name: Low beardtongue (EN)

Distribution: USA (California, Colorado, Idaho, New Mexico, Nevada, Oregon, Utah, Washington State, Wyoming)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon cinereus Piper; Contr. U.S. Natl. Herb. 16: 209 (1913)

= Penstemon cinereus subsp. foliatus D.D.Keck; Amer. Midl. Naturalist 33: 188 (1945)

= Penstemon collinus A.Nelson; Bull. Torrey Bot. Club 25: 279 (1898)

= Penstemon decurvus Pennell ex Crosswh.; Leafl. W. Bot. 10: 172 (1965)

= Penstemon humilis var. deserticus S.L.Welsh; Rhodora 95(883-884): 416 (1993) (desereticus)

= Penstemon puberulus M.E.Jones; Contr. W. Bot. 12: 64 (1908), nom. illeg.

variant :

var. brevifolius A.Gray; Syn. Fl. N. Amer. 2(1): 267 (1878)

Distribution: USA (Utah)

76 USA

Synonyms: hidden

= Penstemon brevifolius (A.Gray) A.Nelson; New Man. Bot. Centr. Rocky Mt., ed. 2: 445 (1909)

= Penstemon humilis subsp. brevifolius (A.Gray) D.D.Keck; Amer. Midl. Naturalist 33: 184 (1945)

variant :

var. obtusifolius (Pennell) Reveal; Great Basin Naturalist 35(4): 369 (1975)

Distribution: USA (Utah)

76 USA

Synonyms: hidden

= Penstemon humilis subsp. obtusifolius (Pennell) D.D.Keck; Amer. Midl. Naturalist 33: 184 (1945)

= Penstemon obtusifolius Pennell; Contr. U.S. Natl. Herb. 20: 370 (1920)

species :

Penstemon idahoensis N.D.Atwood & S.L.Welsh; Great Basin Naturalist 48(4): 496 (1988)

Name: Idaho beardtongue (EN)

Distribution: USA (Idaho, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon imberbis (Kunth) Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 345 (1839)

Distribution: Mexico (Aguascalientes, Chihuahua, Colima, Guanajuato, Hidalgo, Jalisco, Mexico State, Michoacán, Morelos, Queretaro, San Luis Potosi, Zacatecas)

79 MEX

Synonyms: hidden

= Chelone imberbis Kunth; Nov. Gen. Sp. [H.B.K.] 2: 363 (1818)

= Chelone inermis Poir.; Dict. Sci. Nat. [F.Cuvier], éd. 2, 38: 385 (1825)

= Penstemon humboldtii G.Don; Gen. Hist. 4: 640 (1837)

= Penstemon inermis (Poir.) Poir.; Dict. Sci. Nat. [F.Cuvier], éd. 2, 38: 385 (1825)

species :

Penstemon immanifestus N.H.Holmgren; Brittonia 30(3): 334 (1978)

Name: Steptoe Valley beardtongue (EN)

Distribution: USA (E-Nevada, W-Utah)

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon incertus Brandegee; Bot. Gaz. 27: 454 (1899)

Name: Mojave beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon fruticiformis var. incertus (Brandegee) Munz & I.M.Johnst.; Bull. S. Calif. Acad. Sci. 23: 33 (1924)

species :

Penstemon inflatus Crosswh.; Amer. Midl. Naturalist 74: 436 (1965)

Name: Inflated beardtongue (EN)

Distribution: USA (New Mexico)

77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon isophyllus B.L.Rob.; Proc. Boston Soc. Nat. Hist. 31: 267 (1904)

Distribution: Mexico (Jalisco, Nayarit, Oaxaca, Puebla, Veracruz)

79 MEX

species :

Penstemon jamesii Benth.; Prodr. [A.P. de Candolle] 10: 325 (1846)

Name: James´ beardtongue (EN)

Distribution: USA (Colorado, Kansas, New Mexico, Texas); Mexico (Coahuila, Nuevo León)

73 USA 74 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon albidus Torr.; Ann. Lyceum Nat. Hist. New York 2: 229 (1827), nom. illeg.

= Penstemon similis A.Nelson; Bull. Torrey Bot. Club 25: 548 (1898)

species :

Penstemon janishiae N.H.Holmgren; Brittonia 31(2): 223 (1979)

Name: Antelope Valley beardtongue (EN)

Distribution: USA (California, Idaho, Nevada, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon kingii S.Watson; Botany (Fortieth Parallel) 222 (1871)

Name: King´s beardtongue (EN)

Distribution: USA (Nevada, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon kingii var. glaucus Kellogg; Proc. Calif. Acad. Sci. 5: 39 (1873)

= Penstemon nyeensis Crosswh.; Leafl. W. Bot. 10: 171 (1965)

species :

Penstemon kralii D.Estes; J. Bot. Res. Inst. Texas 6(1): 1 (2012)

Distribution: USA (Alabama, Tennessee)

78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon labrosus (A.Gray) Mast. ex Hook.f.; Bot. Mag. 110: t. 6738 (1884)

Name: San Gabriel beardtongue (EN)

Distribution: USA (S-California); Mexico (Baja California Norte)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Elmigera

Synonyms: hidden

= Penstemon barbatus var. labrosus A.Gray; Bot. California [W.H.Brewer] 1: 622 (1876)

species :

Penstemon laetus A.Gray; Proc. Amer. Acad. Arts 6: 76 (1866)

Name: Western gray beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon laetus f. albus P.C.Everett; Aliso 2: 181 (1950)

variant :

var. leptosepalus Greene ex A.Gray; Syn. Fl. N. Amer., ed. 2, 2(1): 442 (1886)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon laetus subsp. leptosepalus (Greene ex A.Gray) D.D.Keck; Univ. Calif. Publ. Bot. 16: 393 (1932)

variant :

var. sagittatus (D.D.Keck) McMinn; Man. Calif. Shrubs 518 (1939)

Distribution: USA (California, Oregon)

73 USA 76 USA

Synonyms: hidden

= Penstemon laetus subsp. sagittatus D.D.Keck; Univ. Calif. Publ. Bot. 16: 395, fig. 12 (1932)

= Penstemon sagittatus (D.D.Keck) Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 15 (1941)

species :

Penstemon laevigatus Aiton; Hort. Kew. [W.Aiton] 2: 361 (1789)

Name: Eastern smooth beardtongue (EN)

Distribution: USA (Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Florida, Georgia, Kentucky, Louisiana, Massachusetts, Maryland, Mississippi, North Carolina, New Jersey, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia)

75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Bartramia pulchella Salisb.; Prodr. Stirp. Chap. Allerton 99 (1796)

= Chelone laevigata J.Thomps.; Bot. Displ., t. 4 (1798)

= Chelone laevigata Pers.; Syn. Pl. [Persoon] 2: 169 (1806)

= Chelone pentstemon L.; Sp. Pl. [Linnaeus] 2: 612 (1753)

= Penstemon glaucophyllus Scheele; Linnaea 21: 763 (1848)

= Penstemon laevigatus var. canescens Britton; Mem. Torrey Bot. Club 2: 30 (1890)

= Penstemon nuttallii L.C.Beck; Amer. J. Sci. Arts 14: 120 (1828)

= Penstemon pentstemon (L.) MacMill.; Bull. Torrey Bot. Club 19: 15 (1892), nom. inval.

species :

Penstemon laevis Pennell; Contr. U.S. Natl. Herb. 20: 347 (1920)

Name: Southwestern beardtongue (EN)

Distribution: USA (Arizona, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon lanceolatus Benth.; Pl. Hartw. [Bentham] 22 (1846)

Name: Lanceleaf beardtongue (EN)

Distribution: USA (Arizona, New Mexico, Texas); Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Jalisco, Nayarit, Nuevo León, San Luis Potosi, Sonora, Tamaulipas, Veracruz, Zacatecas)

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Chamaeleon

Synonyms: hidden

= Penstemon ramosus Crosswh.; Sida 2: 341 (1966), nom. nov. for P. pauciflorus Greene

= Penstemon pauciflorus Greene; Bot. Gaz. 6: 218 (1881)

species :

Penstemon laricifolius Hook. & Arn.; Bot. Beechey Voy. 376 (1839)

Name: Larchleaf beardtongue (EN)

Distribution: USA (Idaho, Montana, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon filifolius Nutt. ex Benth.; Prodr. [A.P. de Candolle] 10: 322 (1846)

variant :

var. exilifolius (A.Nelson) Payson; Univ. Wyoming Publ. Sci., Bot. 1: 97 (1924)

Distribution: USA (Colorado, Wyoming)

73 USA

Synonyms: hidden

= Penstemon exilifolius A.Nelson; Bull. Torrey Bot. Club 28: 230 (1901)

= Penstemon exilifolius var. desertus A.Nelson; Bull. Torrey Bot. Club 28: 231 (1901)

= Penstemon laricifolius subsp. exilifolius (A.Nelson) D.D.Keck; Bull. Torrey Bot. Club 64: 381 (1937)

species :

Penstemon laxiflorus Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 229 (1935)

Name: Nodding beardtongue (EN)

Distribution: USA (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Oklahoma, Texas)

74 USA 77 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon australis subsp. laxiflorus (Pennell) R.W.Benn.; Phytologia 9: 58 (1963)

= Penstemon australis var. ameles Crosswh.

species :

Penstemon laxus A.Nelson; Bot. Gaz. 54: 147 (1912)

Name: Tufted beardtongue (EN)

Distribution: USA (SC-Idaho)

Error

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon watsonii subsp. laxus (A.Nelson) D.D.Keck; Amer. Midl. Naturalist 23: 610 (1940)

species :

Penstemon leiophyllus Pennell; Contr. U.S. Natl. Herb. 20: 346 (1920)

Name: Smoothleaf beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

variant :

var. francisci-pennellii (Crosswh.) N.H.Holmgren; Intermount. Fl. [Cronquist et al.] 4: 432 (1984)

Distribution: USA (Nevada)

76 USA

Synonyms: hidden

= Penstemon francisci-pennellii Crosswh.; Leafl. W. Bot. 10: 170 (1965)

variant :

var. keckii (Clokey) N.H.Holmgren; Intermount. Fl. [Cronquist et al.] 4: 432 (1984)

Name: Keck´s beardtongue (EN)

Distribution: USA (Nevada)

76 USA

Synonyms: hidden

= Penstemon keckii Clokey; Madroño 4: 128 (1937)

species :

Penstemon lemhiensis (D.D.Keck) D.D.Keck & Cronquist; Brittonia 8: 248 (1957)

Name: Lemhi beardtongue (EN)

Distribution: USA (Idaho, Montana)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon speciosus subsp. lemhiensis D.D.Keck; Amer. Midl. Naturalist 23: 612 (1940)

species :

Penstemon lentus Pennell; Contr. U.S. Natl. Herb. 20: 359 (1920)

Name: Handsome beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Utah)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Coerulei

variant :

var. albiflorus (D.D.Keck) Reveal; Great Basin Naturalist 35(4): 370 (1975)

Distribution: USA (Utah)

76 USA

Synonyms: hidden

= Penstemon lentus subsp. albiflorus D.D.Keck; Amer. Midl. Naturalist 23: 616 (1940)

species :

Penstemon leonardii Rydb.; Bull. Torrey Bot. Club 40: 483 (1913)

Name: Leonard´s beardtongue (EN)

Distribution: USA (Idaho, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

variant :

var. higginsii Neese; Great Basin Naturalist 46(3): 459 (1986)

Name: Higgins´ beardtongue (EN)

Distribution: USA (Utah)

76 USA

Synonyms: hidden

= Penstemon higginsii (Neese) N.H.Holmgren & N.D.Atwood; Utah Fl., ed. 3: 625 (2003)

variant :

var. patricus (N.H.Holmgren) Neese; Great Basin Naturalist 46(3): 460 (1986)

Distribution: USA (Nevada, Utah)

76 USA

Synonyms: hidden

= Penstemon patricus N.H.Holmgren; Brittonia 31(2): 238 (1979)

species :

Penstemon leonensis Straw; Bol. Soc. Bot. México 27: 8 (1962)

Distribution: Mexico (Aguascalientes, Coahuila, Jalisco, Nuevo León, Tamaulipas, Zacatecas)

79 MEX

species :

Penstemon linarioides A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 112 (1858 publ. 1859)

Name: Toadflax beardtongue (EN)

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon linarioides subsp. compactifolius D.D.Keck; Bull. Torrey Bot. Club 64: 376 (1937)

variant :

var. coloradoensis (A.Nelson) C.C.Freeman; PhytoKeys 80: 35 (2017)

Distribution: USA (Arizona, Colorado, New Mexico)

73 USA 76 USA 77 USA

Synonyms: hidden

= Penstemon coloradoensis A.Nelson; Bull. Torrey Bot. Club 26: 355 (1899)

= Penstemon coloradoensis subsp. sileri Pennell; Contr. U.S. Natl. Herb. 20: 363 (1920)

= Penstemon linarioides subsp. coloradoensis (A.Nelson) D.D.Keck; Bull. Torrey Bot. Club 64: 375 (1937)

variant :

var. maguirei (D.D.Keck) A.Nelson; Univ. Wyoming Publ. 3: 105 (1937)

Name: Maguire´s beardtongue (EN)

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Synonyms: hidden

= Penstemon linarioides subsp. maguirei D.D.Keck; Bull. Torrey Bot. Club 64: 378 (1937)

variant :

var. sileri A.Gray; Syn. Fl. N. Amer. 2(1): 270 (1878)

Name: Siler´s beardtongue (EN)

Distribution: USA (Arizona, Nevada, Utah); Mexico (Baja California Norte, Sonora)

76 USA 79 MEX

Synonyms: hidden

= Penstemon linarioides subsp. sileri (A.Gray) D.D.Keck; Bull. Torrey Bot. Club 64: 374 (1937)

= Penstemon linarioides var. viridis D.D.Keck; Bull. Torrey Bot. Club 64: 375 (1937)

species :

Penstemon longiflorus (Pennell) S.L.Clark; Great Basin Naturalist 35(4): 434 (1975)

Name: Longflower beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon cyananthus var. longiflorus (Pennell) Neese

= Penstemon cyananthus subsp. longiflorus Pennell; Contr. U.S. Natl. Herb. 20(9): 353 (1920)

species :

Penstemon luculentus R.L.Johnson & M.R.Stevens; PhytoKeys 63: 49 (2016), nom. nov.

Name: Fremont´s beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon fremontii var. glabrescens Dorn & Lichvar; Madroño 37(3): 195 (1990)

species :

Penstemon luteus G.L.Nesom; Phytologia 71(5): 333 (1991 publ. 1992)

Distribution: Mexico (Coahuila, Nuevo León)

79 MEX

species :

Penstemon lyalli (A.Gray) A.Gray; Syn. Fl. N. Amer., ed. 2, 2: Pt. 1, 440 (1886)

Name: Lyall´s beardtongue (EN)

Distribution: Canada (Alberta, British Columbia); USA (Idaho, Montana, Washington State)

71 CDN 73 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon linearifolius J.M.Coult. & Fisher; Bot. Gaz. 18: 302 (1893)

= Penstemon lyallii var. linearifolius (J.M.Coult. & Fisher) Krautter; Contr. Bot. Lab. Morris Arbor. Univ. Pennsylvania 3: 104 (1908)

= Penstemon menziesii var. lyallii A.Gray; Proc. Amer. Acad. Arts 6: 76 (1866)

species :

Penstemon marcusii (D.D.Keck) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Name: Marcus´ beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon moffatii subsp. marcusii D.D.Keck; Bull. Torrey Bot. Club 65: 243 (1938)

= Penstemon pseudohumilis M.E.Jones; Contr. W. Bot. 12: 65 (1908), non Rydb. 1900

species :

Penstemon mensarum Pennell; Contr. U.S. Natl. Herb. 20: 380 (1920)

Name: Tiger beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon metcalfei Wooton & Standl.; Torreya 9: 145 (1909)

Name: Metcalfe´s beardtongue (EN)

Distribution: USA (New Mexico: A. L. Grant Co., Sierra Co.)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon puberulus Wooton & Standl.; Bull. Torrey Bot. Club 36: 112 (1909), nom. illeg., non M. E. Jones

species :

Penstemon miniatus Lindl.; Edwards´s Bot. Reg., t. 14 (1847)

Distribution: Mexico (Aguascalientes, Chihuahua, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, Mexico State, Michoacán, Morelos, Nayarit, Nuevo León, Oaxaca, Puebla, Queretaro, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas)

79 MEX

variant :

var. apateticus (Straw) C.C.Freeman; PhytoKeys 80: 36 (2017)

Distribution: Mexico (Veracruz, Durango, Chihuahua, Michoacán, Sinaloa, Aguascalientes, Jalisco to Queretaro, Veracruz, Oaxaca)

79 MEX

Synonyms: hidden

= Penstemon apateticus subsp. durangensis Straw; Bol. Soc. Bot. México 24: 43 (1959)

= Penstemon apateticus Straw; Bol. Soc. Bot. México 24: 42 (1959)

= Penstemon miniatus subsp. apateticus (Straw) Straw; Brittonia 36(1): 67 (1984)

variant :

var. townsendianus (Straw) C.C.Freeman; PhytoKeys 80: 36 (2017)

Distribution: Mexico

79 MEX

Synonyms: hidden

= Penstemon miniatus subsp. townsendianus (Straw) Straw; Brittonia 36(1): 67 (1984)

= Penstemon apateticus subsp. townsendianus Straw; Bol. Soc. Bot. México 24: 44 (1959)

species :

Penstemon minutifolius Straw

Distribution: Mexico (Durango, Jalisco, Oaxaca, Puebla, Sinaloa, Zacatecas)

79 MEX

Remarks: provisionally accepted name

species :

Penstemon miser A.Gray; Syn. Fl. N. Amer., ed. 2, 2(1): 441 (1886)

Name: Malheur beardtongue (EN)

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon moffattii Eastw.; Zoe 4: 9 (1893)

Name: Moffatt´s beardtongue (EN)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon moffatii subsp. paysonii (Pennell) D.D.Keck; Bull. Torrey Bot. Club 65: 243 (1938)

= Penstemon moffattii subsp. paysonii (Pennell) D.D.Keck; Bull. Torrey Bot. Club 65: 243 (1938)

= Penstemon paysonii Pennell; Contr. U.S. Natl. Herb. 20: 312 (1920)

species :

Penstemon mohinoranus Straw; Bol. Soc. Bot. México 27: 15 (1962)

Distribution: Mexico (Chihuahua)

79 MEX

species :

Penstemon monoensis A.Heller; Muhlenbergia 2: 246 (1906)

Name: Mono beardtongue (EN)

Distribution: USA (E-California)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon divergens M.E.Jones; Contr. W. Bot. 12: 64 (1908)

species :

Penstemon montanus Greene; Pittonia 2: 240 (1892)

Name: Cordroot beardtongue (EN)

Distribution: USA (Idaho, Montana, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon woodsii A.Nelson; Bot. Gaz. 52: 277 (1911)

variant :

var. idahoensis (Pennell & D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 394 (1959)

Name: Central Idaho beardtongue (EN)

Distribution: USA (Idaho)

73 USA

Synonyms: hidden

= Penstemon montanus subsp. idahoensis D.D.Keck; Brittonia 8: 247 (1957)

species :

Penstemon moriahensis N.H.Holmgren; Brittonia 30(4): 422 (1978)

Name: Mt. Moriah beardtongue (EN)

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon mucronatus N.H.Holmgren; Brittonia 31(2): 234 (1979)

Name: Mucronate beardtongue (EN)

Distribution: USA (Colorado, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Penstemon pachyphyllus var. mucronatus (N.H.Holmgren) Neese; Great Basin Naturalist 46(3): 460 (1986)

species :

Penstemon multiflorus (Benth.) Chapm. ex Small; Fl. S.E. U.S. [Small] 1061 (1903)

Name: Manyflower beardtongue (EN)

Distribution: USA (S-Alabama, Florida, S-Georgia)

78 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon pubescens var. multiflorus Benth.; Prodr. [A.P. de Candolle] 10: 327 (1846)

species :

Penstemon murrayanus Hook.; Bot. Mag. t. 3472 (1836)

Name: Scarlet beardtongue (EN)

Distribution: USA (Arkansas, Louisiana, Oklahoma, Texas)

74 USA 77 USA 78 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon nanus D.D.Keck; Amer. Midl. Naturalist 23: 607 (1940)

Name: Low beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon navajoa N.H.Holmgren; Brittonia 30(4): 419 (1978)

Name: Navajo beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon neomexicanus Wooton & Standl.; Contr. U.S. Natl. Herb. 16: 172 (1913)

Name: New Mexico beardtongue (EN)

Distribution: USA (New Mexico); Mexico (Chihuahua)

77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon neotericus D.D.Keck; Univ. Calif. Publ. Bot. 16: 398 (1932)

Name: Plumas County beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon newberryi A.Gray; Pacif. Railr. Rep. 6(3, no. 2), Bot. [Williamson & Abbot]: 82 (1857)

Name: Mountain pride

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon menziesii f. newberryi (A.Gray) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 765 (1894)

= Penstemon menziesii var. newberryi (A.Gray) A.Gray; Proc. Amer. Acad. Arts 6: 57 (1862)

= Penstemon menziesii var. robinsonii Mast.; Gard. Chron. 1872: 969 (1872)

= Penstemon newberryi f. humilior Sealy; Bot. Mag. 165: t. 4 (1948)

variant :

var. berryi (Eastw.) N.H.Holmgren; Brittonia 44(4): 482 (1992)

Name: Berry´s beardtongue (EN)

Distribution: USA (California, Oregon)

73 USA 76 USA

Synonyms: hidden

= Penstemon berryi Eastw.; Bull. Torrey Bot. Club 32: 209 (1905)

= Penstemon newberryi subsp. berryi (Eastw.) D.D.Keck; Ill. Fl. Pacific States 3: 768 (1951)

variant :

var. sonomensis (Greene) Jeps.; Fl. W. Calif. [Jepson] 401 (1901)

Name: Sonoma beardtongue (EN)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon newberryi subsp. sonomensis (Greene) D.D.Keck; Ill. Fl. Pacific States 3: 768 (1951)

= Penstemon sonomensis Greene; Pittonia 2: 218 (1891), et Man. Bot. San Francisco 274 (1894)

species :

Penstemon nitidus Douglas ex Benth.; Prodr. [A.P. de Candolle] 10: 323 (1846)

Name: Waxleaf beardtongue (EN)

Distribution: Canada (Alberta, British Columbia, Manitoba, Saskatchewan); USA (Colorado, Montana, North Dakota, South Dakota, Wyoming)

71 CDN 73 USA 74 USA

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Penstemon nitidus var. major Benth.; Prodr. [A.P. de Candolle] 10: 323 (1846)

variant :

var. polyphyllus (Pennell) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 395 (1959)

Distribution: USA (Idaho, Montana)

73 USA

Synonyms: hidden

= Penstemon nitidus subsp. polyphyllus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 95: 6 (1942)

species :

Penstemon nudiflorus A.Gray; Proc. Amer. Acad. Arts 20: 206 (1885)

Name: Flagstaff beardtongue (EN)

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon occiduus Straw; Bol. Soc. Bot. México 27: 7 (1962)

Distribution: Mexico (Chihuahua, Durango)

79 MEX

species :

Penstemon oklahomensis Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 237 (1935)

Name: Oklahoma beardtongue (EN)

Distribution: USA (Oklahoma)

74 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon oliganthus Wooton & Standl.; Contr. U.S. Natl. Herb. 16: 172 (1913)

Name: Apache beardtongue (EN)

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon ophianthus Pennell; Contr. U.S. Natl. Herb. 20: 343 (1920)

Name: Arizona beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Utah)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon jamesii subsp. ophianthus (Pennell) D.D.Keck; Bull. Torrey Bot. Club 65: 240 (1938)

= Penstemon pilosigulatus A.Nelson; Univ. Wyoming Publ. Sci., Bot. 1: 130 (1926)

species :

Penstemon osterhoutii Pennell; Contr. U.S. Natl. Herb. 20: 358 (1920)

Name: Osterhout´s beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon ovatus Douglas; Bot. Mag. t. 2903 (1829)

Name: Ovate-leaf beardtongue (EN)

Distribution: Canada (British Columbia); USA (Oregon, Washington State)

71 CDN 73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon leptophyllus Rydb.; Fl. Rocky Mts. 773 (1917)

species :

Penstemon pachyphyllus A.Gray ex Rydb.; Fl. Rocky Mts. 770 (1917)

Name: Thickleaf beardtongue (EN)

Distribution: USA (New Mexico, Utah)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Coerulei

variant :

var. congestus (M.E.Jones) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Distribution: USA (Arizona, Nevada, Utah)

76 USA

Synonyms: hidden

= Penstemon acuminatus var. congestus M.E.Jones; Proc. Calif. Acad. Sci., Ser. 2, 5: 714 (1895)

= Penstemon congestus (M.E.Jones) Pennell; Ann. Carnegie Mus. 26: 331 (1937)

= Penstemon pachyphyllus subsp. congestus (M.E.Jones) D.D.Keck in Kearney & Peebles; J. Wash. Acad. Sci. 29: 490 (1939)

species :

Penstemon pahutensis N.H.Holmgren; Aliso 7(3): 351 (1971)

Name: Pahute Mesa beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon pallidus Small; Fl. S.E. U.S. [Small] 1060 (1903)

Name: Pale beardtongue (EN)

Distribution: Canada (Ontario); USA (Alabama, Arkansas, Connecticut, District of Columbia, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Mississippi, North Carolina, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Tennessee, Virginia, Vermont, Wisconsin, West Virginia); Mexico (Veracruz)

72 CDN 74 USA 75 USA 78 USA 79 MEX

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon arkansanus var. pubescens Pennell; Proc. Acad. Nat. Sci. Philadelphia 73: 494 (1922)

= Penstemon brevisepalus f. heterolasius Fernald; Rhodora 51: 84 (1949)

species :

Penstemon palmeri A.Gray; Proc. Amer. Acad. Arts 7: 379 (1868)

Name: Palmer´s beardtongue (EN)

Distribution: USA (Arizona, California, Colorado, Idaho, New Mexico, Nevada, Utah, Washington State, Wyoming)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Spectabiles

variant :

var. eglandulosus (D.D.Keck) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Name: Scented beardtongue (EN)

Distribution: USA (Arizona, Utah)

76 USA

Synonyms: hidden

= Penstemon palmeri subsp. eglandulosus D.D.Keck; Amer. Midl. Naturalist 18: 797 (1937)

variant :

var. macranthus (Eastw.) N.H.Holmgren; Brittonia 31(1): 105 (1979)

Distribution: USA (Nevada)

76 USA

Synonyms: hidden

= Penstemon macranthus Eastw.; Bull. Torrey Bot. Club 32: 207 (1905)

species :

Penstemon papillatus J.T.Howell; Leafl. W. Bot. 2: 119 (1938)

Name: Inyo beardtongue (EN)

Distribution: USA (E-California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon parryi A.Gray; Syn. Fl. N. Amer. 2(1): 264 (1878)

Name: Parry´s beardtongue (EN)

Distribution: USA (Arizona); Mexico (Chihuahua, Sonora)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Gentianoides

Synonyms: hidden

= Penstemon shantzii A.Nelson; Amer. J. Bot. 23: 270 (1936)

= Penstemon shantzii var. incognitus A.Nelson; Amer. J. Bot. 25: 116 (1938)

species :

Penstemon parvulus (A.Gray) Krautter; Trans. & Proc. Bot. Soc. Pennsylvania 2: 193 (1911)

Distribution: USA (N-California, SW-Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon azureus subsp. parvulus (A.Gray) D.D.Keck; Univ. Calif. Publ. Bot. 16: 406 (1932)

= Penstemon azureus var. parvulus A.Gray; Syn. Fl. N. Amer. 2(1): 272 (1878)

= Penstemon jaffrayanus var. parvulus (A.Gray) Jeps.; Man. Fl. Pl. Calif. [Jepson] 917 (1925)

species :

Penstemon parvus Pennell; Contr. U.S. Natl. Herb. 20: 345 (1920)

Name: Aquarius Plateau beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon patens (M.E.Jones) N.H.Holmgren; Brittonia 31(1): 106 (1979)

Name: Lone Pine beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

Synonyms: hidden

= Penstemon confusus subsp. patens (M.E.Jones) D.D.Keck; Amer. Midl. Naturalist 18: 827 (1937)

= Penstemon confusus var. patens M.E.Jones; Contr. W. Bot. 12: 63 (1908)

species :

Penstemon payettensis A.Nelson & J.F.Macbr.; Bot. Gaz. 62: 147 (1916)

Name: Payette beardtongue (EN)

Distribution: USA (Idaho, Montana, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon paysoniorum D.D.Keck; Leafl. W. Bot. 5: 57 (1947)

Name: Payson´s beardtongue (EN)

Distribution: USA (Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon peckii Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 12 (1941)

Name: Peck´s beardtongue (EN)

Distribution: USA (Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon penlandii W.A.Weber; Phytologia 60(6): 459 (1986)

Name: Penland´s beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon pennellianus D.D.Keck; Amer. Midl. Naturalist 23: 614 (1940)

Name: Blue Mountain beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon perfoliatus Brongn.; Hort. Universel (1844) cum ic. ex Benth. in Prodr. [A.P. de Candolle] 10: 326

Distribution: Mexico (Oaxaca)

79 MEX

Synonyms: hidden

= Penstemon connatus Deppe ex Walp.; Allg. Gartenzeitung [Otto & Dietrich] 12: 276 (1844)

= Penstemon cordatus M.Martens & Galeotti; Bull. Acad. Roy. Sci. Bruxelles 12(2): 17 (1845), nom. illeg.

= Penstemon verticillatus M.Martens & Galeotti; Bull. Acad. Roy. Sci. Bruxelles 12(2): 18 (1845)

species :

Penstemon perpulcher A.Nelson; Bot. Gaz. 52: 273 (1911)

Name: Minidoka beardtongue (EN)

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon minidokanus A.Nelson & J.F.Macbr.; Bot. Gaz. 62: 147 (1916)

= Penstemon pandus (A.Nelson & J.F.Macbr.) A.Nelson & J.F.Macbr.; Bot. Gaz. 65: 69 (1918)

= Penstemon perpulcher var. pandus A.Nelson & J.F.Macbr.; Bot. Gaz. 55: 382 (1913)

species :

Penstemon personatus D.D.Keck; Madroño 3: 248 (1936)

Name: Closethroat beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Dasanthera, sect. Erianthera

species :

Penstemon petiolatus Brandegee; Bot. Gaz. 27: 455 (1899)

Name: Petiolate beardtongue (EN)

Distribution: USA (Arizona, Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Petiolati

species :

Penstemon pinifolius Greene; Bot. Gaz. 6: 218 (1881)

Name: Pine-leaf beardtongue (EN)

Distribution: USA (Arizona, New Mexico); Mexico (Chihuahua, Hidalgo, Queretaro, Sonora, Tamaulipas)

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon pinorum L.M.Shultz & J.S.Shultz; Brittonia 37(1): 98 (1985)

Name: Pine Valley beardtongue (EN)

Distribution: USA (Utah: Iron Co., Washington Co.)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon plagapineus Straw; Bol. Soc. Bot. México 27: 19 (1962)

Distribution: Mexico (Durango, Nayarit, Sinaloa)

79 MEX

species :

Penstemon platyphyllus Rydb.; Bull. Torrey Bot. Club 36: 690 (1909)

Name: Broad-leaf beardtongue (EN)

Distribution: USA (Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon heterophyllus var. latifolius S.Watson; Botany (Fortieth Parallel) 222 (1871), non P. latifolius Hffmgg. 1824

= Penstemon latifolius (S.Watson) Krautter; Contr. Bot. Lab. Morris Arbor. Univ. Pennsylvania 3: 194 (1908), nom. illeg.

species :

Penstemon potosinus Straw; Brittonia 15: 62 (1963)

Distribution: Mexico (San Luis Potosi, Zacatecas)

79 MEX

species :

Penstemon pratensis Greene; Leafl. Bot. Observ. Crit. 1: 165 (1906)

Name: Western whiteflower beardtongue (EN)

Distribution: USA (Idaho, Nevada, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon procerus Douglas ex Graham; Edinburgh New Philos. J. 348 (1829)

Name: Pincushion beardtongue (EN)

Distribution: Alaska; Canada (Alberta, British Columbia, Manitoba, Saskatchewan, Yukon); USA (Colorado, Idaho, Montana, North Dakota, Oregon, Utah, Washington State, Wyoming)

70 ASK CDN 71 CDN 73 USA 74 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Lepteiris parviflora Raf.; New Fl. [Rafinesque] 2: 73 (1836)

= Penstemon confertus var. procerus (Douglas ex Graham) Coville; Contr. U.S. Natl. Herb. 4: 169 (1893)

= Penstemon micranthus Nutt.; J. Acad. Nat. Sci. Philadelphia 7: 45 (1834)

= Penstemon pononii Anon.; Gard. Chron. 1872: 733 (1872)

= Penstemon procerus f. albescens B.Boivin; Naturaliste Canad. 93: 1062 (1967)

= Penstemon procerus f. jenkinsii B.Boivin; Naturaliste Canad. 87: 43 (1960)

= Penstemon procerus subsp. pulvereus Pennell; Contr. U.S. Natl. Herb. 20: 366 (1920)

= Penstemon procerus var. fimbriatus Regel; Gartenflora 21: 241 (1872)

= Penstemon procerus var. micrantus (Nutt.) M.E.Jones; Bull. Montana State Univ., Biol. Ser. 15: 45 (1910)

= Penstemon spicatus Anon.; Gard. Chron. 1872: 733 (1872)

= Penstemon tinctus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 6 (1941)

variant :

var. aberrans (M.E.Jones) A.Nelson; Bot. Gaz. 54: 146 (1912)

Distribution: USA (Utah)

76 USA

Synonyms: hidden

= Penstemon procerus subsp. aberrans (M.E.Jones) D.D.Keck; Amer. Midl. Naturalist 33: 146 (1945)

= Penstemon confertus var. aberrans M.E.Jones; Proc. Calif. Acad. Sci., Ser. 2, 5: 715 (1895)

variant :

var. brachyanthus (Pennell) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 398 (1959)

Distribution: USA (California, Oregon)

73 USA 76 USA

Synonyms: hidden

= Penstemon brachyanthus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 3 (1941)

= Penstemon procerus subsp. brachyanthus (Pennell) D.D.Keck; Brittonia 8: 249 (1957)

= Penstemon tolmiei subsp. brachyanthus (Pennell) D.D.Keck; Amer. Midl. Naturalist 33: 148 (1945)

variant :

var. formosus (A.Nelson) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 398 (1959)

Distribution: USA (California, Idaho, Nevada, Oregon)

73 USA 76 USA

Synonyms: hidden

= Penstemon cacuminis Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 2 (1941)

= Penstemon formosus A.Nelson; Proc. Biol. Soc. Washington 17: 100 (1904), nom. illeg.

= Penstemon procerus subsp. formosus (A.Nelson) D.D.Keck; Brittonia 8: 249 (1957)

= Penstemon pulchellus Greene; Pittonia 3: 310 (1898), nom. illeg.

= Penstemon tolmiei subsp. formosus (A.Nelson) D.D.Keck; Amer. Midl. Naturalist 33: 147 (1945)

variant :

var. modestus (Greene) N.H.Holmgren; Brittonia 31(1): 106 (1979)

Distribution: USA (Nevada)

76 USA

Synonyms: hidden

= Penstemon confertus var. modestus (Greene) Jeps.; Man. Fl. Pl. Calif. [Jepson] 914 (1925)

= Penstemon modestus Greene; Leafl. Bot. Observ. Crit. 1: 165 (1906)

= Penstemon procerus subsp. modestus (Greene) D.D.Keck; Brittonia 8: 249 (1957)

= Penstemon tolmiei subsp. modestus (Greene) D.D.Keck; Amer. Midl. Naturalist 33: 148 (1945)

variant :

var. tolmiei (Hook.) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 398 (1959)

Name: Tolmie´s beardtongue (EN)

Distribution: Canada (British Columbia); USA (Washington State)

71 CDN 73 USA

Synonyms: hidden

= Penstemon procerus subsp. tolmiei (Hook.) D.D.Keck; Brittonia 8: 249 (1957)

= Penstemon tolmiei Hook.; Fl. Bor.-Amer. [Michaux] 2: 98 (1803)

species :

Penstemon pruinosus Douglas; Bot. Reg., t. 1280 (1829)

Name: Chelan beardtongue (EN)

Distribution: Canada (British Columbia); USA (Washington State)

71 CDN 73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon pseudoparvus Crosswh.; Amer. Midl. Naturalist 74: 431 (1965)

Name: Mt. Washington beardtongue (EN)

Distribution: USA (New Mexico)

77 USA

species :

Penstemon pseudoputus (Crosswh.) N.H.Holmgren; Brittonia 31(1): 106 (1979)

Name: Kaibab Plateau beardtongue (EN)

Distribution: USA (Arizona, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon virgatus subsp. pseudoputus Crosswh.; Amer. Midl. Naturalist 77: 35, fig (1967)

species :

Penstemon pseudospectabilis M.E.Jones; Contr. W. Bot. 12: 66 (1908)

Name: Desert beardtongue (EN)

Distribution: USA (Arizona, California, Utah); Mexico (Sonora)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Spectabiles

variant :

var. connatifolius (A.Nelson) C.C.Freeman; PhytoKeys 80: 37 (2017)

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Synonyms: hidden

= Penstemon connatifolius A.Nelson; Amer. J. Bot. 18: 437 (1931)

= Penstemon pseudospectabilis subsp. connatifolius (A.Nelson) D.D.Keck; Amer. Midl. Naturalist 18: 807 (1937)

species :

Penstemon pudicus Reveal & Beatley; Bull. Torrey Bot. Club 98(6): 332 (1971 publ. 1972)

Name: Kawich Range beardtongue (EN)

Distribution: USA (S-Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon pumilus Nutt.; J. Acad. Nat. Sci. Philadelphia 7: 46 (1834)

Name: Salmon River beardtongue (EN)

Distribution: USA (Idaho)

73 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon incanus (A.Gray) Tidestr.; Contr. U.S. Natl. Herb. 25: 495 (1925)

= Penstemon pumilus var. incanus A.Gray; Syn. Fl. N. Amer. 2(1): 269 (1878)

species :

Penstemon punctatus Brandegee; Univ. Calif. Publ. Bot. 4: 189 (1911)

Distribution: Mexico (Coahuila)

79 MEX

species :

Penstemon purpusii Brandegee; Bot. Gaz. 27: 455 (1899)

Name: Snow Mountain beardtongue (EN)

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon putus A.Nelson; Univ. Wyoming Publ. Sci., Bot. 1: 131 (1926)

Name: Black River beardtongue (EN)

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon virgatus subsp. putus (A.Nelson) Crosswh.; Amer. Midl. Naturalist 77: 34 (1967)

species :

Penstemon radicosus A.Nelson; Bull. Torrey Bot. Club 25: 280 (1898)

Name: Matroot beardtongue (EN)

Distribution: USA (Colorado, Idaho, Montana, Nevada, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon lineolatus Greene; Leafl. Bot. Observ. Crit. 1: 164 (1906)

species :

Penstemon rattanii A.Gray; Proc. Amer. Acad. Arts 15: 50 (1880)

Name: Rattan´s beardtongue (EN)

Distribution: USA (California, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

variant :

var. kleei (Green) A.Gray; Syn. Fl. N. Amer., ed. 2, 2(1): 441 (1886)

Name: Santa Cruz Mountains beardtongue (EN)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon kleei Greene; Bull. Torrey Bot. Club 10: 127 (1883)

= Penstemon rattanii subsp. kleei (Greene) D.D.Keck; Publ. Carnegie Inst. Wash. 520: 295 (1940)

species :

Penstemon reidmoranii Zacarías & A.Wolfe; Phytotaxa 387(1): 67 (2019)

Distribution: Mexico (Baja California)

79 MEX

species :

Penstemon retrorsus Payson; Contr. U.S. Natl. Herb. 20: 373 (1920)

Name: Adobe beardtongue (EN)

Distribution: USA (Colorado: Delta Co., Montrose Co.)

73 USA

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon rhizomatosus N.H.Holmgren; Brittonia 50(2): 162 (1998)

Name: Scheel Creek beardtongue (EN)

Distribution: USA (Nevada: White Pine Co.)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon richardsonii Douglas; Bot. Reg. 14: t. 1121 (1828)

Name: Richardson´s beardtongue (EN)

Distribution: Canada (British Columbia); USA (Oregon, Washington State)

71 CDN 73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon pickettii H.St.John; Proc. Biol. Soc. Washington 44: 33 (1931)

= Penstemon rivularis Douglas ex Trautv.; Bull. Sci. Acad. Imp. Sci. St.-Pétersbourg 5: 346 (1839)

variant :

var. dentatus (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 401 (1959)

Distribution: USA (Oregon)

73 USA

Synonyms: hidden

= Penstemon richardsonii subsp. dentatus D.D.Keck; Brittonia 8: 250 (1957)

species :

Penstemon roezlii Regel; Gartenflora 239 (1872)

Name: Roezl´s beardtongue (EN)

Distribution: USA (California, Nevada, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon cinerascens Greene; Leafl. Bot. Observ. Crit. 1: 161 (1906)

= Penstemon laetus subsp. roezlii (Regel) D.D.Keck; Univ. Calif. Publ. Bot. 16: 390 (fig. 10) (1932)

= Penstemon laetus var. roezlii (Regel) Jeps.; Man. Fl. Pl. Calif. [Jepson] 916 (1925)

= Penstemon roezlii var. violaceus Brandegee; Bot. Gaz. 27: 456 (1899)

= Penstemon violaceus (Brandegee) A.Nelson; Proc. Biol. Soc. Washington 17: 96 (1904)

species :

Penstemon roseus (Cerv. ex Sweet) G.Don; Hort. Brit. [Loudon] 243 (1830)

79 MEX

Synonyms: hidden

= Chelone rosea Cerv. ex Sweet; Brit. Fl. Gard. [Sweet] 3: t. 230 (1828)

= Penstemon campanulatus f. roseus (G.Don) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 768 (1894)

= Penstemon kunthii G.Don; Hort. Brit. [Loudon] 243 (1830)

species :

Penstemon rostriflorus Kellogg; Proc. Calif. Acad. Sci. 2: 15 (1863)

Name: Bridges beardtongue (EN)

Distribution: USA (Arizona, California, Colorado, New Mexico, Nevada, Utah); Mexico (Baja California Norte)

73 USA 76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Bridgesiani

Synonyms: hidden

= Penstemon bridgesii A.Gray; Proc. Amer. Acad. Arts 7: 379 (1868)

= Penstemon bridgesii var. amplexicaulis Monnet; Bull. Soc. Bot. France 61: 228 (1915)

= Penstemon bridgesii var. rostriflorus (Kellogg) Schelle; Handb. Laubholzben. [Beissner et al.] 432 (1903), nom. superfl.

species :

Penstemon rotundifolius A.Gray; Proc. Amer. Acad. Arts 22: 307 (1887)

Distribution: Mexico (Chihuahua)

79 MEX

species :

Penstemon rubicundus D.D.Keck; Amer. Midl. Naturalist 18: 792, in clavi, 802 (1937)

Name: Wassuk Range beardtongue (EN)

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

species :

Penstemon rupicola (Piper) Howell; Fl. N.W. Amer. [Howell] 1: 510 (1901)

Name: Cliff beardtongue (EN)

Distribution: USA (California, Oregon, Washington State)

73 USA 76 USA

Remarks: subgen. Dasanthera, sect. Erianthera

Synonyms: hidden

= Penstemon newberryi var. rupicola Piper; Bull. Torrey Bot. Club 27: 397 (1900)

species :

Penstemon rydbergii A.Nelson; Bull. Torrey Bot. Club 25: 281 (1898)

Name: Rydberg´s beardtongue (EN)

Distribution: USA (Arizona, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington State, Wyoming)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon attenuatus var. varians A.Nelson; Bot. Gaz. 54: 146 (1912)

= Penstemon erosus Rydb.; Bull. Torrey Bot. Club 28: 28 (1901)

= Penstemon lacerellus Greene; Leafl. Bot. Observ. Crit. 1: 161 (1906)

= Penstemon latiusculus Greene; Leafl. Bot. Observ. Crit. 1: 161 (1906)

= Penstemon productus Greene; Leafl. Bot. Observ. Crit. 1: 166 (1906)

= Penstemon rydbergii var. varians (A.Nelson) Cronquist; Vasc. Pl. Pacif. N. W. [C.L.Hitchcock et al.] 4: 402 (1959)

variant :

var. aggregatus (Pennell) K.Holmgren; Brittonia 31(1): 106 (1979)

Name: Meadow beardtongue (EN)

Distribution: USA (Arizona, Colorado, Idaho, Montana, Utah, Wyoming)

73 USA 76 USA

Synonyms: hidden

= Penstemon aggregatus Pennell; Contr. U.S. Natl. Herb. 20: 367 (1920)

= Penstemon rydbergii subsp. aggregatus (Pennell) D.D.Keck; Amer. Midl. Naturalist 33: 158 (1945)

variant :

var. oreocharis (Greene) N.H.Holmgren; Intermount. Fl. [Cronquist et al.] 4: 390 (1984)

Name: Herbaceous beardtongue (EN)

Distribution: USA (California, Idaho, Nevada, Oregon, Washington State)

73 USA 76 USA

Synonyms: hidden

= Penstemon ellipticus Greene; Leafl. Bot. Observ. Crit. 1: 167 (1906), nom. illeg.

= Penstemon oreocharis Greene; Leafl. Bot. Observ. Crit. 1: 163 (1906)

= Penstemon recurvatus A.Heller; Muhlenbergia 2: 247 (1906)

= Penstemon vaseyanus Greene; Leafl. Bot. Observ. Crit. 1: 200 (1906)

species :

Penstemon salmonensis N.H.Holmgren; Brittonia 70(1): 129, figs. 7f-j, 8 (2017)

Distribution: USA (Idaho)

73 USA

species :

Penstemon saltarius Crosswh.; Amer. Midl. Naturalist 84: 243 (1970)

Distribution: Mexico (Durango)

79 MEX

species :

Penstemon saxosorum Pennell; Contr. U.S. Natl. Herb. 20: 349 (1920)

Name: Upland beardtongue (EN)

Distribution: USA (Colorado, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon scapoides D.D.Keck; Univ. Calif. Publ. Bot. 16: 379 (1932)

Name: Pinyon beardtongue (EN)

Distribution: USA (E-California, W-Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon scariosus Pennell; Contr. U.S. Natl. Herb. 20: 353 (1920)

Name: White River beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

variant :

var. albifluvis (England) N.H.Holmgren; Intermount. Fl. [Cronquist et al.] 4: 442 (1984)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Synonyms: hidden

= Penstemon albifluvis England; Great Basin Naturalist 42(3): 367 (1982)

variant :

var. cyanomontanus Neese; Great Basin Naturalist 46(3): 460 (1986)

Name: Neese´s Blue Mountain beardtongue (EN)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

variant :

var. garrettii (Pennell) N.H.Holmgren; Intermount. Fl. [Cronquist et al.] 4: 442 (1984)

Name: Garrett´s beardtongue (EN)

Distribution: USA (Utah, Wyoming)

73 USA 76 USA

Synonyms: hidden

= Penstemon garrettii Pennell; Contr. U.S. Natl. Herb. 20: 353 (1920)

variant :

var. jolynniae M.R.Stevens & R.L.Johnson; Monogr. W. N. Amer. Naturalist 14: 57 (2022)

Distribution: USA (Utah)

76 USA

species :

Penstemon schaffneri (Hemsl.) Straw; Brittonia 15: 56 (1963)

Distribution: Mexico (Aguascalientes, Guanajuato, Jalisco, San Luis Potosi, Zacatecas)

79 MEX

Synonyms: hidden

= Penstemon baccharifolius var. schaffneri Hemsl.; Biol. Centr.-Amer., Bot. 2: 443 (1882)

species :

Penstemon secundiflorus Benth.; Prodr. [A.P. de Candolle] 10: 325 (1846)

Name: Sidebells beardtongue (EN)

Distribution: USA (Colorado, New Mexico, Wyoming); Mexico (Chihuahua, Sonora)

73 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Coerulei

Synonyms: hidden

= Penstemon secundiflorus subsp. lavendulus Pennell; Contr. U.S. Natl. Herb. 20: 358 (1920)

= Penstemon secundiflorus var. caudatus A.Nelson; New Man. Bot. Centr. Rocky Mt., ed. 2: 444 (1909)

variant :

var. versicolor (Pennell) C.C.Freeman; PhytoKeys 80: 37 (2017)

Name: Variable-color beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Synonyms: hidden

= Penstemon versicolor Pennell; Contr. U.S. Natl. Herb. 20: 358 (1920)

species :

Penstemon seorsus (A.Nelson) D.D.Keck; Amer. Midl. Naturalist 23: 595 (1937 publ. 1940)

Name: Shortlobe beardtongue (EN)

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon linarioides var. seorsus A.Nelson; Bot. Gaz. 54: 147 (1912)

species :

Penstemon sepalulus A.Nelson; New Man. Bot. Centr. Rocky Mt. 449 (1909)

Name: Little-cup beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon azureus var. ambiguus A.Gray; Syn. Fl. N. Amer. 2(1): 272 (1878), non P. ambiguus Torrey 1827

= Penstemon heterophyllus S.Watson; Botany (Fortieth Parallel) 222 (1871), nom. illeg.

species :

Penstemon serrulatus Menzies; Fl. Bor.-Amer. [Hooker] 2: 95 (1814), ex Sm.

Name: Serrulate beardtongue (EN)

Distribution: Alaska; Canada (British Columbia); USA (Oregon, Washington State)

70 ASK 71 CDN 73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon argutus Paxton; Paxton´s Mag. Bot. 6: 271 (1839)

= Penstemon diffusus Douglas; Bot. Reg. 14: t. 1132 (1828)

= Penstemon diffusus f. albiflorus Hardin; Mazama 11: 89 (1929)

= Penstemon themisteri E.Vilm.; Fl. Pleine Terre, éd. 2: 657 (1866)

species :

Penstemon smallii A.Heller; Bull. Torrey Bot. Club 21: 25 et 304 (1894)

Name: Small´s beardtongue (EN)

Distribution: USA (Alabama, Georgia, North Carolina, South Carolina, Tennessee)

78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon spatulatus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 10 (1941)

Name: Wallowa beardtongue (EN)

Distribution: USA (NE-Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon speciosus Douglas; Bot. Reg., t. 1270 (1829) ex Lindl.

Name: Royal beardtongue (EN)

Distribution: USA (California, Idaho, Nevada, Oregon, Utah, Washington State)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon deserticola Piper; Proc. Biol. Soc. Washington 32: 43 (1919)

= Penstemon glaber f. speciosus (Douglas) Voss; Vilm. Blumengärtn. ed. 3 [Siebert & Voss], 1: 766 (1894)

= Penstemon glaber var. speciosus (Douglas) Regel; Gartenflora 24: 34 (1875)

= Penstemon kennedyi A.Nelson; Proc. Biol. Soc. Washington 17: 97 (1904)

= Penstemon pilifer A.Heller; Muhlenbergia 2: 136 (1906)

= Penstemon rex A.Nelson & J.F.Macbr.; Bot. Gaz. 55: 381 (1913)

= Penstemon speciosus subsp. kennedyi (A.Nelson) D.D.Keck; Amer. Midl. Naturalist 23: 613 (1940)

= Penstemon speciosus var. pilifer (A.Heller) Munz & I.M.Johnst.; Bull. S. Calif. Acad. Sci. 23: 35 (1924)

species :

Penstemon spectabilis Thurb. ex Torr. & A.Gray; Pacif. Railr. Rep. 4(5, no. 4), Bot. [Whipple]: 119 (1857)

Name: Showy beardtongue (EN)

Distribution: USA (California); Mexico (Baja California Norte)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon spectabilis var. gilmanii Jeps.; Man. Fl. Pl. Calif. [Jepson] 912 (1925)

variant :

var. subinteger (D.D.Keck) C.C.Freeman; PhytoKeys 80: 37 (2017)

Distribution: Mexico (Baja California Sur, Baja California Norte)

79 MEX

Synonyms: hidden

= Penstemon spectabilis subsp. subinteger D.D.Keck; Amer. Midl. Naturalist 18: 817 (1937)

variant :

var. subviscosus (D.D.Keck) McMinn; Man. Calif. Shrubs 513 (1939)

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon spectabilis subsp. subviscosus D.D.Keck; Amer. Midl. Naturalist 18: 818 (1937)

species :

Penstemon stenophyllus A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 112 (1858 publ. 1859)

Name: Sonoran beardtongue (EN)

Distribution: USA (Arizona); Mexico (Chihuahua, Durango, Jalisco, Sonora, Zacatecas)

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Chamaeleon

Synonyms: hidden

= Penstemon rubescens A.Gray; Proc. Amer. Acad. Arts 19: 92 (1883)

species :

Penstemon stephensii Brandegee; Zoe 5: 151 (1903)

Name: Stephens´ beardtongue (EN)

Distribution: USA (S-California)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon clevelandii var. stephensii (Brandegee) Munz & I.M.Johnst.; Bull. Torrey Bot. Club 49: 41 (1922)

species :

Penstemon strictiformis Rydb.; Bull. Torrey Bot. Club 31: 642 (1904)

Name: Mancos beardtongue (EN)

Distribution: USA (Arizona, Colorado, New Mexico, Utah)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon strictus subsp. strictiformis (Rydb.) D.D.Keck in Kearney & Peebles; J. Wash. Acad. Sci. 29: 491 (1939)

species :

Penstemon strictus Benth.; Prodr. [A.P. de Candolle] 10: 324 (1846)

Name: Rocky Mountain beardtongue (EN)

Distribution: USA (Arizona, California, Colorado, New Mexico, Utah, Wyoming)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon micranthus Torr.; Rep. Exped. Rocky Mts. [Frémont] 2: 89 (1845), nom. illeg.

= Penstemon strictus subsp. angustus Pennell; Contr. U.S. Natl. Herb. 20: 356 (1920)

species :

Penstemon subglaber Rydb.; Bull. Torrey Bot. Club 36: 688 (1909)

Name: Smooth beardtongue (EN)

Distribution: USA (California, Idaho, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon glaber var. utahensis S.Watson; Botany (Fortieth Parallel) 217 (1871)

= Penstemon utahensis (S.Watson) A.Nelson; Bull. Torrey Bot. Club 26: 242 (1899), nom. illeg.

species :

Penstemon subserratus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 13 (1941)

Name: Finetooth beardtongue (EN)

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon subulatus M.E.Jones; Contr. W. Bot. 12: 63 (1908)

Name: Hackberry beardtongue (EN)

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon sudans M.E.Jones; Contr. W. Bot. 8: 37 (1898)

Name: Susanville beardtongue (EN)

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon deustus subsp. sudans (M.E.Jones) Pennell & D.D.Keck; Amer. Midl. Naturalist 23: 600 (1940)

species :

Penstemon superbus A.Nelson; Proc. Biol. Soc. Washington 17: 100 (1904)

Name: Superb beardtongue (EN)

Distribution: USA (Arizona, New Mexico); Mexico (Sonora)

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Gentianoides

Synonyms: hidden

= Penstemon puniceus A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 2(1): 113 (1859), nom. illeg.

= Penstemon puniceus var. parryi A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 2(1): 113 (1859)

species :

Penstemon tenuiflorus Pennell; Addisonia 4: 79 (1919)

Name: Eastern white-flower beardtongue (EN)

Distribution: USA (Alabama, Kentucky, Mississippi, Tennessee)

78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon tenuifolius Benth.; Pl. Hartw. [Bentham] 22 (1846)

Distribution: Mexico (Aguascalientes, Coahuila, Durango, Jalisco, Queretaro, San Luis Potosi, Zacatecas)

79 MEX

species :

Penstemon tenuis Small; Fl. S.E. U.S. [Small] 1061 (1903)

Name: Sharpsepal beardtongue (EN)

Distribution: USA (Arkansas, Louisiana, Mississippi, Texas)

77 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon tepicensis Straw; Brittonia 15: 63 (1963)

Distribution: Mexico (Durango, Nayarit)

79 MEX

species :

Penstemon teucrioides Greene; Pl. Baker. [Greene] 3: 23 (1901)

Name: Germander beardtongue (EN)

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon thompsoniae (A.Gray) Rydb.; Bull. Torrey Bot. Club 36: 690 (1909)

Name: Thompson´s beardtongue (EN)

Distribution: USA (Arizona, California, Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon caespitosus var. thompsoniae (A.Gray) A.Nelson; Univ. Wyoming Publ. 3: 104 (1937)

= Penstemon pumilus var. thompsoniae A.Gray; Syn. Fl. N. Amer. 2(1): 269 (1878)

= Penstemon thompsoniae subsp. jaegeri D.D.Keck; Bull. Torrey Bot. Club 64: 362 (1937)

= Penstemon thompsoniae var. desperatus Neese; Great Basin Naturalist 46(3): 460 (1986)

= Penstemon thompsoniae var. jaegeri (D.D.Keck) Tiehm; J. Bot. Res. Inst. Texas 17(1): 26 (2023)

species :

Penstemon thurberi Torr.; Pacif. Railr. Rep. 7(3), Bot. [Parke]: 15 (1856)

Name: Thurber´s beardtongue (EN)

Distribution: USA (Arizona, California, New Mexico, Nevada, Texas); Mexico (Baja California Norte, Coahuila)

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Ambigui

Synonyms: hidden

= Leiostemon thurberi (Torr.) Greene; Leafl. Bot. Observ. Crit. 1: 223 (1906)

= Penstemon ambiguus var. thurberi (Torr.) A.Gray; Proc. Amer. Acad. Arts 6: 65 (1862)

= Penstemon scoparius A.Nelson; Univ. Wyoming Publ. Sci., Bot. 1: 132 (1926)

= Penstemon thurberi var. anestius Reveal & Beatley; Great Basin Naturalist 34: 230 (1974)

species :

Penstemon tidestromii Pennell; Contr. U.S. Natl. Herb. 20: 379 (1920)

Name: Tidestrom´s beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon leptanthus Pennell; Contr. U.S. Natl. Herb. 20: 339 (1920)

species :

Penstemon tiehmii N.H.Holmgren; Brittonia 50(2): 159 (1998)

Name: Tiehm´s beardtongue (EN)

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon tracyi D.D.Keck; Amer. Midl. Naturalist 23: 603 (1940)

Name: Trinity beardtongue (EN)

Distribution: USA (California: Siskiyou Co., Trinity Co.)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon triflorus A.Heller; Contr. Herb. Franklin Marshall Coll. 1: 92, t. 8 (1895)

subspecies :

subsp. triflorus

Name: Heller´s beardtongue (EN)

Distribution: USA (Texas)

77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon helleri Small; Bull. Torrey Bot. Club 25: 471 (1898)

subspecies :

subsp. integrifolius Pennell; Monogr. Acad. Nat. Sci. Philadelphia 1: 251 (1935)

Name: Heller´s beardtongue (EN)

Distribution: USA (Texas); Mexico (Coahuila)

77 USA 79 MEX

Synonyms: hidden

= Penstemon triflorus var. integrifolius (Pennell) Cory; Rhodora 38: 407 (1936)

species :

Penstemon triphyllus Douglas; Bot. Reg., t. 1245 (1829)

Name: Whorled beardtongue (EN)

Distribution: USA (Idaho, Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

variant :

var. infernalis N.H.Holmgren; Brittonia 70(1): 125, figs. 5-6 (2017)

Distribution: USA (Oregon)

73 USA

species :

Penstemon tubaeflorus Nutt.; Trans. Amer. Philos. Soc., n. s. 5: 181 (1837)

Name: Tube beardtongue (EN)

Distribution: USA (Arkansas, Connecticut, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maine, Missouri, Mississippi, Nebraska, New Hampshire, Ohio, Oklahoma, Tennessee, Texas, Vermont, Wisconsin)

74 USA 75 USA 77 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

variant :

var. achoreus Fernald; Rhodora 51: 83 (1949)

Distribution: USA (Connecticut, Massachusetts, Maine, New York, Pennsylvania, Rhode Island, Vermont)

75 USA

species :

Penstemon uintahensis Pennell; Contr. U.S. Natl. Herb. 20: 350 (1920)

Name: Uinta Mountain beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon unilateralis Rydb.; Bull. Torrey Bot. Club 33: 150 (1906)

Name: Oneside beardtongue (EN)

Distribution: USA (Colorado, New Mexico, Wyoming)

73 USA 77 USA

Synonyms: hidden

= Penstemon eastwoodiae A.Heller; Muhlenbergia 1: 4 (1900)

species :

Penstemon utahensis Eastw.; Zoe 4: 124 (1893)

Name: Utah beardtongue (EN)

Distribution: USA (Arizona, California, Colorado, Nevada, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon venustus Douglas; Edwards´s Bot. Reg., t. 1309 (1830)

Name: Lovely beardtongue (EN)

Distribution: USA (California, Idaho, Oregon, Utah, Washington State)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon amoenus Kunze; Index Sem. (Leipzig) 1840: ? (1840)

= Penstemon suffruticosus Douglas ex Benth.; Prodr. [A.P. de Candolle] 10: 330 (1846)

species :

Penstemon virens Pennell ex Rydb.; Fl. Rocky Mts. 773 (1917)

Name: Front Range beardtongue (EN)

Distribution: USA (Colorado, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon virgatus A.Gray; Rep. U.S. Mex. Bound., Bot. [Emory] 112 (1858 publ. 1859)

Name: Upright blue beardtongue (EN)

Distribution: USA (Arizona, New Mexico); Mexico (Colima, Jalisco, San Luis Potosi)

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Glabri

variant :

var. asa-grayi (Crosswh.) Dorn; Vasc. Pl. Wyoming 300 (1988)

Distribution: USA (Colorado, New Mexico, Wyoming)

73 USA 77 USA

Synonyms: hidden

= Penstemon virgatus subsp. asa-grayi Crosswh.; Southw. Naturalist 10: 318 (1965)

species :

Penstemon vizcainensis Moran; Phytologia 45(6): 498 (1980)

Distribution: Mexico (Baja California Sur)

79 MEX

species :

Penstemon vulcanellus Crosswh.; Amer. Midl. Naturalist 84: 240 (1970)

Distribution: Mexico (Durango)

79 MEX

species :

Penstemon wardii A.Gray; Proc. Amer. Acad. Arts 12: 82 (1877)

Name: Ward´s beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon glaber var. wardii (A.Gray) M.E.Jones; Contr. W. Bot. 12: 62 (1908)

species :

Penstemon washingtonensis D.D.Keck; Amer. Midl. Naturalist 33: 150 (1945)

Name: Washington beardtongue (EN)

Distribution: USA (Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon watsonii A.Gray; Syn. Fl. N. Amer. 2(1): 267 (1878)

Name: Watson´s beardtongue (EN)

Distribution: USA (Arizona, Colorado, Idaho, Nevada, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon phlogifolius Greene; Leafl. Bot. Observ. Crit. 1: 164 (1906)

species :

Penstemon wendtiorum B.L.Turner; Phytoneuron 2010-31: 2 (2010)

Distribution: Mexico (Coahuila)

79 MEX

species :

Penstemon whippleanus A.Gray; Proc. Amer. Acad. Arts 6: 73 (1862)

Name: Whipple´s beardtongue (EN)

Distribution: USA (Arizona, Colorado, Idaho, Montana, New Mexico, Utah, Wyoming)

73 USA 76 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon arizonicus A.Heller; Bull. Torrey Bot. Club 26: 591 (1899)

= Penstemon glaucus var. stenosepalus A.Gray; Proc. Amer. Acad. Arts 6: 70 (1862)

= Penstemon pallescens Osterh.; Bull. Torrey Bot. Club 57: 559 (1930 publ. 1931)

= Penstemon stenosepalus (A.Gray) Howell; Fl. N.W. Amer. [Howell] 514 (1901)

species :

Penstemon wilcoxii Rydb.; Bull. Torrey Bot. Club 28 (1901)

Name: Wilcox´s beardtongue (EN)

Distribution: USA (Idaho, Montana, Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

= Penstemon ovatus var. pinetorum Piper; Contr. U.S. Natl. Herb. 11: 500 (1906)

= Penstemon pinetorum (Piper) Piper; Contr. U.S. Natl. Herb. 11: 500 (1906)

species :

Penstemon wislizeni (A.Gray) Straw; Bol. Soc. Bot. México 24: 50 (1959)

Distribution: Mexico (Chihuahua, Durango, Nuevo León, San Luis Potosi, Sonora)

79 MEX

Synonyms: hidden

= Penstemon barbatus var. wislizeni A.Gray; Proc. Amer. Acad. Arts 6: 59 (1862)

species :

Penstemon wrightii Hook.; Bot. Mag. 77: t. 4601 (1851)

Name: Wright´s beardtongue (EN)

Distribution: USA (W-Texas)

77 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon xylus A.Nelson; Bot. Gaz. 34: 31 (1902)

Name: Tushar Range beardtongue (EN)

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon caespitosus subsp. suffruticosus (A.Gray) D.D.Keck; Bull. Torrey Bot. Club 64: 365 (1937)

= Penstemon caespitosus var. suffruticosus A.Gray; Syn. Fl. N. Amer. 2(1): 270 (1878)

= Penstemon tusharensis N.H.Holmgren; Brittonia 31(1): 106 (1979), nom. nov. superfl.

species :

Penstemon yampaensis Penland; Madroño 14: 156 (1958)

Name: Yampa beardtongue (EN)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon acaulis var. yampaensis (Penland) Neese; Great Basin Naturalist 46(3): 459 (1986)

species :

Penstemon ×bryantiae D.D.Keck; Amer. Midl. Naturalist 18: 820 (1937)

Name: Bryant´s beardtongue (EN)

Distribution: USA (California)

76 USA

species :

Penstemon ×crideri A.Nelson; Amer. J. Bot. 23: 270 (1936)

Distribution: USA (Arizona)

76 USA

Remarks: Penstemon eatonii ssp. exsertus x pseudospectabilis ssp. connatifolius

species :

Penstemon ×dubius Davidson; Bull. S. Calif. Acad. Sci. 28: 6 (1929)

Distribution: USA

76 USA

Remarks: Penstemon centranthifolius x grinnellii

species :

Penstemon ×jonesii Pennell; Contr. U.S. Natl. Herb. 20: 338 (1920)

Distribution: USA (Utah)

76 USA

Remarks: Penstemon eatonii ssp. undosus x laevis

species :

Penstemon ×mirus A.Nelson; Amer. J. Bot. 25: 116 (1938)

Distribution: USA (Arizona)

76 USA

Remarks: Penstemon eatonii ssp. exertus x palmeri

species :

Penstemon ×moronensis Crosswh.; Sida 2: 266 (1966)

Distribution: Mexico

79 MEX

Remarks: Penstemon hidalgensis x roseus

species :

Penstemon ×parishii A.Gray; Proc. Amer. Acad. Arts 17: 228 (1882)

Distribution: USA (California)

76 USA

Remarks: Penstemon centranthifolius x spectabilis

species :

Penstemon ×peirsonii Munz & I.M.Johnst.; Bull. Torrey Bot. Club 52: 225 (1925)

Distribution: USA (California)

76 USA

Remarks: Penstemon grinnellii x speciosus

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A complete, synonymic checklist of the Higher Plants of the World

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A complete, synonymic checklist of the Higher Plants of the World

Version 25.12 (Dec. 21st, 2025)

Covering 358,226 accepted species,
8,847 hybrids, 48,003 accepted infraspecific taxa and 1,006,142 synonyms,
**in total 1,421,218* 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

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How to Cite:

Realization

Search

+ Family

Filter

Order

Family (26)

Genus (99)

Display options

A complete, synonymic checklist of the Higher Plants of the World

Version 25.12 (Dec. 21st, 2025)

Covering 358,226 accepted species,8,847 hybrids, 48,003 accepted infraspecific taxa and 1,006,142 synonyms,in total 1,421,218* 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

Covering 358,226 accepted species,
8,847 hybrids, 48,003 accepted infraspecific taxa and 1,006,142 synonyms,
**in total 1,421,218* names**

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