501.0000 Family Plantaginaceae Juss.; Gen. Pl.: 89 (1789), nom. cons.

93 genera, ca. 2050 spp.

Species listed in database: 2090; hybrids: 91

501.2206 Genus Penstemon Schmidel; Icon. Pl., ed. Keller, 2 (1762)

Distribution: mostly Rocky Mountains, some to Mexico, 1 south to Guatemala, few Eastern USA, some north to Alaska

Species listed in database: 284; hybrids: 8

species :

Penstemon abietinus Pennell; Contrib. US. Nat. Herb. 20: 376 (1920)

Name: Firleaf beardtongue

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

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

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

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

Distribution: USA (Idaho, Nevada, Oregon)

73 USA 76 USA

species :

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

Name: Alamo beardtongue

Distribution: USA (New Mexico, Texas)

77 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon albertinus Greene; Leaflets Bot. obs. 1: 167 (1906)

Name: Alberta beardtongue

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. Am. 2: 53 (1818)

Name: White beardtongue

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. 2: 53 (1818)

= Penstemon viscidulus Nees; Wied, Reise Bras. 2: 333 (1821)

species :

Penstemon albomarginatus M.E.Jones; Contrib. Western Bot. 12: 61(1908)

Name: Whitemargin beardtongue

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

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon ambiguus Torr.; Ann. Lyc. N. York 2: 228 (1828)

Name: Gilia beardtongue

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. Obs. 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

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

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 Leon, 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 208 (1905)

Name: Siskiyou beardtongue

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

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. 2: 52 (1818), nom. superfl.

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

variant :

var. caudatus (A.Heller) Rydb.; Bull. Torr. 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 Nat. 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 Nat. 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

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

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

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

species :

Penstemon arenicola A.Nelson; Bull. Tarr. Bot. Club, 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. N. York Bot. Gard. 1: 348 (1900)

Name: Stiff-leaf beardtongue

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

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

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

Name: Arkansas beardtongue

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; Acad. Nat. Sci. Philad. Monogr. 1, Scroph. 228 (1935)

species :

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

Distribution: Mexico (Durango, Sinaloa, etc.)

79 MEX

Synonyms: hidden

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

species :

Penstemon attenuatus Douglas; Bot. Reg t. 1295 (1830)

Name: Sulphur beardtongue

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. Saint-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 & al.] 4: 373 (1959)

Name: South Idaho beardtongue

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. Obs. Crit. 1: 166 (1906)

variant :

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

Name: Sulphur beardtongue

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; Not. Nat. Acad. Nat. Sci. Philad., No. 71, 8 (1941)

variant :

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

Name: Small beardtongue

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; Coult. & Nelson, Man. Bot. 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. N. York Bot. Gard. 1: 346 (1900)

species :

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

Name: Atwood´s beardtongue

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

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon auriberbis Pennell; Contrib. US. Nat. Herb. 20: 339 (1920)

Name: Colorado beardtongue

Distribution: USA (Colorado, New Mexico)

73 USA 77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon parviflorus Pennell; Contrib. US, Nat. Herb. 20: 340 (1920)

species :

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

Name: Southern beardtongue

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

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. 1: 769 (1894)

= Penstemon glaucifolius A.Gray; Pacif. Railr. Rep. Williamson & Abbot, Bot. 6(3

= Penstemon heterophyllus var. azureus (Benth.) Jeps.; Man. Fl. Pl. Calif.: 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

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; Catalect. fasc. 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, Michoacan, Morelos, Nuevo Leon, 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.; Nom. ed. I. 186 (1821) non Kunth 1818

= Chelone barbata Cav.; Ic. 3: 22. t. 242 (1795)

= Chelone formosa J.C.Wendl.; Beobacht. 51 (1798)

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

= Elmigera barbata (Cav.) Rchb. ex Steud.; Nomencl. Bot., ed. 2, 1: 550 (1840)

= Penstemon angustifolius C.Fraser ex Pursh; Fl. Amer. Sept. 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.; Wisliz. Tour New Mexico. 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. Saint-Pétersbourg 5: 346 (1839)

variant :

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

Name: Torreys beardtongue

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

73 USA 76 USA 77 USA 79 MEX

Synonyms: hidden

= Penstemon barbatus f. torreyi (Benth. ex DC.) Voss in Vilm.; Vilm. Blumengärtn., ed. 3. 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

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon barrettiae A.Gray; Syn. Fl. N. Am. 2: I. Suppl. 440 (1886)

Name: Barrett´s beardtongue

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

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

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. West. Bot. 1: 82 (1934)

Name: Red Canyon beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon bradburyi Pursh; Fl. Am. Sept. 2: 738 (1813)

Name: Shell-leaf beardtongue

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. 1: 186 (1821)

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

= Penstemon grandiflorus Nutt.; Gen. N. Amer. Pl. 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

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. Torr. Bot. Club 65: 241 (1938)

species :

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

Name: Short-sepal beardtongue

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

75 USA 78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

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

Name: Buckley´s beardtongue

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. Sci. Philad. 1861 461 (1862), non Moench 1794

species :

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

Name: San Bernardino beardtongue

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

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. Torr. Bot. Club 64: 365 (1937)

= Penstemon desertipicti A.Nelson; Univ. Wyoming Publ. 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

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

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 470 (1898)

Name: Long-sepal beardtongue

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. 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, Michoacan, Morelos, Nayarit, Nuevo Leon, 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. et Sp. 2: 365. t. 173 (1818)

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

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

= Chelone elegans Kunth; Nov. Gen. et Sp. 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. 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 Article 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. Torr. Bot. Club 5: 291 (1894)

Name: Eastern gray beardtongue

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; Small, Man. S.E. Fl.: 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.; Contrib. US. Nat. Herb. 16: 171 (1913)

Name: Cardinal beardtongue

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; Am. J. Bot. 21: 578 (1934)

species :

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

Name: Cardwell´s beardtongue

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

Distribution: USA (E-Utah)

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon caryi Pennell; Contrib. US. Nat. Herb. 20: 354 (1920)

Name: Cary´s beardtongue

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; Mag. Bot. 2: t. 50 (1836)

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

species :

Penstemon cinicola D.D.Keck; Am. 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

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

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

76 USA 79 MEX

Remarks: subgen. Penstemon, sect. Spectabiles

variant :

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

Name: San Jacinto beardtongue

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; Am. Boianist 33: 109 (1927)

Name: Sunset Crater beardtongue

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. Am. Phil. Soc. N. S. 5: 182 (1837)

Name: Cobaea beardtongue

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; Publ. Sci. Univ. Wyoming, 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; Acad. Nat. Sci. Philadelphia Monogr. 1: 250 (1935)

species :

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

Name: Dusty beardtongue

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

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; Am. Midl. Naturalist 23: 608 (1940)

Name: Tunnel Springs beardtongue

Distribution: USA (Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

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

Name: Yellow beardtongue

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.: 914 (1925)

= Penstemon confertus var. violaceus Trautv.; Bull. Sci. Acad. Imp. Sci. Saint-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

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

76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

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

Name: Crandall´s beardtongue

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon suffrutescens Rydb.; Bull. Torrey Bot. Club 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. Torr. 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; Publ. Univ. Wyoming 3: 105 (1937)

= Penstemon crandallii subsp. glabrescens (Pennell) D.D.Keck; Bull. Torr. 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; Contrib. US. Nat. Herb. 20: 375 (1920)

= Penstemon linarioides subsp. taosensis D.D.Keck; Bull. Torr. 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. Torr. Bot. Club 64: 369 (1937)

= Penstemon procumbens Greene; Pl. Baker 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; Publ. Univ. Wyoming 3: 106 (1937)

species :

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

Name: Cutleaf beardtongue

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 & al.] 4: 401 (1959)

species :

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

Name: Cusick´s beardtongue

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, et in Moore & Ayres, Gard. Mag. Bot. 3: 249 (1851)

Name: Wasatch beardtongue

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. 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

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 Nat. 37(1): 100 (1977), et l. c. 37(2): 258 (1977), nom. nov., without replaced synonym page

species :

Penstemon cyaneus Pennell; Contrib. US. Nat. Herb. 20: 351 (1920)

Name: Blue beardtongue

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

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Sagebrush beardtongue

Distribution: USA (Colorado, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

Penstemon dasyphyllus A.Gray; Torr. Bot. Mex. Bound. 112 (1858 publ. 1859)

Name: Thick-leaf beardtongue

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

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Chamaeleon

Synonyms: hidden

= Penstemon pringlei S.Watson; Proc. Am, Acad. xxiii 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

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; C. L. Hitchcock et al., Vasc. Pl. Pacif. N. W. 4: 379 (1959)

Name: Menzies´ beardtongue

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. 2: 98 (1838)

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

= Penstemon menziesii f. douglasii (Hook.) Voss; Vilm. Blumengärtn. ed. 3. 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

Distribution: USA (Nevada, Oregon)

73 USA 76 USA

species :

Penstemon deamii Pennell; Acad. Nat. Sci. Philad. Monogr. 1, Scroph. 212 (1935)

Name: Deam´s beardtongue

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 (1967), 38

Name: Mt. Graham beardtongue

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 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. Washington Acad. Sci. 29: 491 (1939)

species :

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

Name: Parachute beardtongue

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Degeners beardtongue

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon deustus Douglas; Bot. Reg. t. 1318 (1830) ex Lindl.

Name: Scabland beardtongue

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. Beckwith & Gunnison, Bot. 2(1): 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 & al.] 4: 380 (1959)

Name: Scabland beardtongue

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.: 513 (1901)

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

species :

Penstemon digitalis Nutt.; Trans. Am. Phil. 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. 2: t. 120 (1825)

= Penstemon alluviorum Pennell; Small, Man. Southeast. Fl. 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. Saint-Pétersbourg 5: 345 (1839)

= Penstemon digitalis var. latifolius Regel; Index Seminum (LE, 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. N. York Bot. Gard. 1: 349 (1900)

Name: Twoleaf beardtongue

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

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon dissectus Elliott; Sketch 2: 129 (1822)

Name: Dissected beardtongue

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

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon dolius M.E.Jones; Contrib. US. Nat. Herb. 20: 341 (1920)

Name: Jones´ beardtongue

Distribution: USA (Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

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

Name: Duchesne beardtongue

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

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; Am. 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; Not. Nat. Acad. Nat. Sci. Philad., No. 71, 14 (1941)

Name: Rockvine beardtongue

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

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

Name: Rocky ledge beardtongue

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. Am. Sept. 2: 737 (1813)

Name: Crested-tongue beardtongue

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, 2: 813 (1825)

= Chelone erianthera (Nutt. ex Pursh) Steud.; Nomencl. Bot. 1: 186 (1821)

= Penstemon cristatus Nutt.; Gen. N. Amer. Pl. 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. Torr. 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

Distribution: USA (Utah, Wyoming)

73 USA 76 USA

Synonyms: hidden

= Penstemon cleburni M.E.Jones; Contrib. Western Bot. 12: 62 (1908)

variant :

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

Name: Longsac beardtongue

Distribution: USA (Idaho, Montana, Oregon)

73 USA

Synonyms: hidden

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

variant :

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

Name: Whited´s beardtongue

Distribution: USA (Washington State)

73 USA

Synonyms: hidden

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

species :

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

Name: Glaucous beardtongue

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; Pacific Railr. Rep. 2, Pt. 4, Bot. (Pope) 168 (1857)

Name: Fendler´s beardtongue

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; Abrams, Ill. Fl. Pacific States 3: 761 (1951)

Name: Threadleaf beardtongue

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. Mexico, No. 27, 14 (1962)

Distribution: Mexico (Chihuahua)

79 MEX

species :

Penstemon flavescens Pennell; Not. Nat. Acad. Nat. Sci. Philad., No. 95, 4 (1942)

Name: High mountain beardtongue

Distribution: USA (Idaho, Montana)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

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

Name: Cordelia beardtongue

Distribution: USA (Nevada: Humboldt Co.)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

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

Name: Panamint beardtongue

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

Distribution: USA (California, Nevada)

76 USA

Synonyms: hidden

= Penstemon austini Eastw.; Bull. Torrey Bot. Club 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 Nat. 43(3): 429 (1983)

Name: Flowers´ beardtongue

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

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

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

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

Synonyms: hidden

= Penstemon fruticiformis var. spiciformis Jeps.; Man. Fl. Pl. Calif.: 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

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. Am. 2: 72 (1836)

= Dasanthera fruticosa (Pursh) Raf.; Am. Monthly Mag. 267 (1818)

= Gerardia fruticosa Pursh; Fl. Am. Sept. 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. 2: 98 (1838), nom. superfl.

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

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

= Penstemon menziesii var. peduncularis (Nutt. ex Benth.) Schelle; Beissner et al., Handb. Laubholzben.: 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 & 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; Abrams, Ill. Fl. Pacific States 3: 465 (1951)

= Penstemon menziesii f. scouleri (Douglas) Voss; Vilm. Blumengärtn. ed. 3. 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 & 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. 2: 99 (1803)

Name: Gairdner´s beardtongue

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. Torr. Bot. Club 27: 396 (1900)

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

variant :

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

Name: Gairdner´s beardtongue

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.: 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 Leon)

79 MEX

species :

Penstemon gentianoides (Kunth) Poir.; Dict. Sci. Nat. 38: 385 (1825)

Distribution: Mexico (Aguascalientes, Chiapas, Coahuila, Ciudad de Mexico, Durango, Guanajuato, Hidalgo, Jalisco, Mexico State, Michoacan, Morelos, Nuevo Leon, 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. et Sp. 2: 364. t. 172 (1818)

= Penstemon skutchii Straw; Bol. Soc. Bot. Mexico, No. 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

Distribution: USA (Colorado, Utah, Wyoming)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon glaber Pursh; Fl. Am. Sept. 2: 738 (1813)

Name: Southern smooth beardtongue

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. Stevens, Bot. 12(2): 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

Distribution: USA (Colorado, Wyoming)

73 USA

Synonyms: hidden

= Chelone alpina Spreng.; Syst. Veg. ed. 16. 4(2): 235 (1827)

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

= Penstemon alpinus Torr.; Ann. Lyc. N. York 1: 35 (1824)

= Penstemon magnus Pennell; Contrib. US. Nat. 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

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. N. 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

Distribution: USA (Idaho, Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon staticifolius Lindl.; Bot. Reg. t. 1770 (1835)

variant :

var. chelanensis (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C. L. Hitchcock & 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; Not. Nat. Acad. Nat. Sci. Philad., No. 71, 10 (1941)

Name: Blueleaf beardtongue

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

Distribution: USA (Idaho, Montana, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

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

species :

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

Name: Lapoint beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

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

Name: Gorman´s beardtongue

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

70 ASK CDN 71 CDN

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon gracilentus A.Gray; Pacif. Rail. Rep. 6: 82 (1857)

Name: Slender beardtongue

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.: 916 (1925)

species :

Penstemon gracilis Nutt.; Gen. Am. 2: 52 (1818)

Name: Lilac beardtongue

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. 2: 813 (1825)

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

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

= Penstemon glaucus Graham; Edinburgh N. Phil. J. 348 (1829)

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

= Penstemon gracilis subsp. wisconsinensis (Pennell) Pennell; Acad. Nat. Sci. Philadelphia Monogr. 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; Acad. Nat. Sci. Philad. Monogr. 1, Scroph. 234 (1935)

species :

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

Name: Uinta Basin beardtongue

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

Distribution: USA (Colorado, New Mexico)

73 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

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

Name: Grinnell´s beardtongue

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; Contrib. Western Bot. 12: 65 (1908)

species :

Penstemon guadalupensis A.Heller; Contrib. Herb. Frankl. Bot. Expl. S. Texas (1895) 92 t. 7

Name: Guadalupe beardtongue

Distribution: USA (Texas)

77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon guadalupensis subsp. ernestii Pennell; Acad. Nat. Sci. Philadelphia Monogr. 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

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

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon harringtonii Penland; Madroño 14: 153 (1958)

Name: Harrington´s beardtongue

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. 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

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

77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Gentianoides

species :

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

Name: Blowout beardtongue

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. Am. 2: I. 269 (1878)

Name: Sierra beardtongue

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

Synonyms: hidden

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

= Penstemon fremontii A.Gray; Watson, Bot. California 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

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

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

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

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. 3: 227 (1800)

Name: Northeastern beardtongue

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.: 611 (1753), nom. cons.

= Chelone pubescens Sweet; Hort. Brit. ed. I. 305 (1827)

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

= Penstemon digitalis var. pubescens (Aiton) Trautv.; Bull. Sci. Acad. Imp. Sci. Saint-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.; Flor. Cab. 2: 117 (1838)

= Penstemon pentstemon (L.) Britton; Mem. Torr. Bot. Club, v.201 (1891)

= Penstemon pubescens Aiton; Hort. Kew. ed. I. 2: 360 (1789)

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

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

species :

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

Name: Low beardtongue

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; Contrib. US. Nat. 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. West. 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, pt. 1: 267 (1878)

Distribution: USA (Utah)

76 USA

Synonyms: hidden

= Penstemon brevifolius (A.Gray) A.Nelson; Coult. & Nelson, Man. Bot. 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 Nat. 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; Contrib. US. Nat. Herb. 20: 370 (1920)

species :

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

Name: Idaho beardtongue

Distribution: USA (Idaho, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon imberbis (Kunth) Trautv.; Bull. Sci. Acad. Petersb. 5: 345 (1839)

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

79 MEX

Synonyms: hidden

= Chelone imberbis Kunth; Nov. Gen. et Sp. 2: 363 (1818)

= Chelone inermis Poir.; Cuvier, Dict. Sci. Nat. ed. 2. 38: 385 (1825)

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

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

species :

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

Name: Steptoe Valley beardtongue

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

76 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

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

Name: Mojave beardtongue

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

Distribution: USA (New Mexico)

77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon isophyllus B.L.Rob.; Proc. Bost. 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

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

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

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

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon kingii S.Watson; Bot. King´s Exp. 222 (1871)

Name: King´s beardtongue

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

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

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. ed. I. 2: 361 (1789)

Name: Eastern smooth beardtongue

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. 2: 169 (1806)

= Chelone pentstemon L.; Sp. Pl.: 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; Contrib. US. Nat. Herb. 20: 347 (1920)

Name: Southwestern beardtongue

Distribution: USA (Arizona, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Lanceleaf beardtongue

Distribution: USA (Arizona, New Mexico, Texas); Mexico (Aguascalientes, Chihuahua, Coahuila, Durango, Jalisco, Nayarit, Nuevo Leon, 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; Coult. Bot. Gaz. 6: 218 (1881)

species :

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

Name: Larchleaf beardtongue

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 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; Acad. Nat. Sci. Philad. Monogr. 1, Scroph. 229 (1935)

Name: Nodding beardtongue

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

Distribution: USA (SC-Idaho)

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; Contrib. US. Nat. Herb. 20: 346 (1920)

Name: Smoothleaf beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

variant :

var. francisci-pennellii (Crosswh.) N.H.Holmgren; Cronquist et al., Intermountain Fl., Vasc. Pl. Intermountain West, U. S. A. 4: 432 (1984)

Distribution: USA (Nevada)

76 USA

Synonyms: hidden

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

variant :

var. keckii (Clokey) N.H.Holmgren; Cronquist et al., Intermountain Fl., Vasc. Pl. Intermountain West, U. S. A. 4: 432 (1984)

Name: Keck´s beardtongue

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

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; Contrib. US. Nat. Herb. 20: 359 (1920)

Name: Handsome beardtongue

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 Nat. 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. Torr. Bot. Club 40: 483 (1913)

Name: Leonard´s beardtongue

Distribution: USA (Idaho, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

variant :

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

Name: Higgins´ beardtongue

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 Nat. 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. Mexico, No. 27, 8 (1962)

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

79 MEX

species :

Penstemon linarioides A.Gray; Torr. Bot. Mex. Bound. 112 (1858 publ. 1859)

Name: Toadflax beardtongue

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon linarioides subsp. compactifolius D.D.Keck; Bull. Torr. 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; Publ. Univ. Wyoming 3: 105 (1937)

Name: Maguire´s beardtongue

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Synonyms: hidden

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

variant :

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

Name: Siler´s beardtongue

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. Torr. Bot. Club 64: 374 (1937)

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

species :

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

Name: Longflower beardtongue

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

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 Leon)

79 MEX

species :

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

Name: Lyall´s beardtongue

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

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

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

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

species :

Penstemon mensarum Pennell; Contrib. US. Nat. Herb. 20: 380 (1920)

Name: Tiger beardtongue

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Metcalfe´s beardtongue

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.; Bot. Reg. (1847) t. 14

Distribution: Mexico (Aguascalientes, Chihuahua, Colima, Ciudad de Mexico, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, Mexico State, Michoacan, Morelos, Nayarit, Nuevo Leon, 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, Michoacan, Sinaloa, Aguascalientes, Jalisco to Queretaro, Veracruz, Oaxaca)

79 MEX

Synonyms: hidden

= Penstemon apateticus subsp. durangensis Straw; Bol. Soc. Bot. México no. 24: 43 (1959)

= Penstemon apateticus Straw; Bol. Soc. Bot. México no. 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

Distribution: USA (Idaho, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

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

Name: Moffatt´s beardtongue

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. Torr. Bot. Club 65: 243 (1938)

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

species :

Penstemon mohinoranus Straw; Bol. Soc. Bot. Mexico, No. 27, 15 (1962)

Distribution: Mexico (Chihuahua)

79 MEX

species :

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

Name: Mono beardtongue

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

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 & al.] 4: 394 (1959)

Name: Central Idaho beardtongue

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

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Mucronate beardtongue

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 Nat. 46(3): 460 (1986)

species :

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

Name: Manyflower beardtongue

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

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

74 USA 77 USA 78 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

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

Name: Low beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

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

Name: Navajo beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon neomexicanus Wooton & Standl.; Contrib. US. Nat. Herb. 16: 172 (1913)

Name: New Mexico beardtongue

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

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon newberryi A.Gray; Pacif. Rail. Rep. 6: 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. 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

Distribution: USA (California, Oregon)

73 USA 76 USA

Synonyms: hidden

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

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

variant :

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

Name: Sonoma beardtongue

Distribution: USA (California)

76 USA

Synonyms: hidden

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

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

species :

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

Name: Waxleaf beardtongue

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 & al.] 4: 395 (1959)

Distribution: USA (Idaho, Montana)

73 USA

Synonyms: hidden

= Penstemon nitidus subsp. polyphyllus Pennell; Notul. Nat. Acad. Nat. Sci. Philadelphia no. 95: 6 (1942)

species :

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

Name: Flagstaff beardtongue

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon occiduus Straw; Bot. Soc. Bot. Mexico, No. 27, 7 (1962)

Distribution: Mexico (Chihuahua, Durango)

79 MEX

species :

Penstemon oklahomensis Pennell; Acad. Nat. Sci. Philad. Monogr. 1, Scroph. 237 (1935)

Name: Oklahoma beardtongue

Distribution: USA (Oklahoma)

74 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon oliganthus Wooton & Standl.; Contrib. US. Nat. Herb. 16: 172 (1913)

Name: Apache beardtongue

Distribution: USA (Arizona, New Mexico)

76 USA 77 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon ophianthus Pennell; Contrib. US. Nat. Herb. 20: 343 (1920)

Name: Arizona beardtongue

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. Torr. Bot. Club 65: 240 (1938)

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

species :

Penstemon osterhoutii Pennell; Contrib. US. Nat. Herb. 20: 358 (1920)

Name: Osterhout´s beardtongue

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Coerulei

species :

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

Name: Ovate-leaf beardtongue

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

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

Distribution: USA (California, Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Pale beardtongue

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

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

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 207 (1905)

species :

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

Name: Inyo beardtongue

Distribution: USA (E-California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon parryi A.Gray; Syn. Fl. N. Am. 2: I. 264 (1878)

Name: Parry´s beardtongue

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. Pennsylv. 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.: 917 (1925)

species :

Penstemon parvus Pennell; Contrib. US, Nat. Herb. 20: 345 (1920)

Name: Aquarius Plateau beardtongue

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

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

Distribution: USA (Idaho, Montana, Oregon)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Payson´s beardtongue

Distribution: USA (Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon peckii Pennell; Not. Nat. Acad. Nat. Sci. Philad., No. 71, 12 (1941)

Name: Peck´s beardtongue

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

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

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

Name: Blue Mountain beardtongue

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon perfoliatus Brongn.; Hortic. Univ. (1844) cum ic. ex Benth. in DC. Prod. 10: 326

Distribution: Mexico (Oaxaca)

79 MEX

Synonyms: hidden

= Penstemon connatus Deppe ex Walp.; Allg. Gartenzeitung 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

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

Distribution: USA (California)

76 USA

Remarks: subgen. Dasanthera, sect. Erianthera

species :

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

Name: Petiolate beardtongue

Distribution: USA (Arizona, Nevada, Utah)

76 USA

Remarks: subgen. Penstemon, sect. Petiolati

species :

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

Name: Pine-leaf beardtongue

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

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

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

species :

Penstemon plagapineus Straw; Bot. Soc. Bot. Mexico, No. 27, 19 (1962)

Distribution: Mexico (Durango, Nayarit, Sinaloa)

79 MEX

species :

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

Name: Broad-leaf beardtongue

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. Obs. Crit. 1: 165 (1906)

Name: Western whiteflower beardtongue

Distribution: USA (Idaho, Nevada, Oregon)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon procerus Douglas ex Graham; Edinburgh N. Phil. J. 348 (1829)

Name: Pincushion beardtongue

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. Am. 2: 73 (1836)

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

= Penstemon micranthus Nutt.; J. Acad. Philad. 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 & al.] 4: 398 (1959)

Distribution: USA (California, Oregon)

73 USA 76 USA

Synonyms: hidden

= Penstemon brachyanthus Pennell; Not. Nat. Acad. Nat. Sci. Philad., No. 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 & 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.: 914 (1925)

= Penstemon modestus Greene; Leafl. Bot. Obs. 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 & al.] 4: 398 (1959)

Name: Tolmie´s beardtongue

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. 2: 98 (1803)

species :

Penstemon pruinosus Douglas; Bot. Reg. t. 1280 (1829)

Name: Chelan beardtongue

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

Distribution: USA (New Mexico)

77 USA

species :

Penstemon pseudoputus (Crosswh.) N.H.Holmgren; Brittonia 31(1): 106 (1979)

Name: Kaibab Plateau beardtongue

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; Contrib. Western Bot. 12: 66 (1908)

Name: Desert beardtongue

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; Am. 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. Torr. Bot. Club. 98(6): 332 (1971 publ. 1972)

Name: Kawich Range beardtongue

Distribution: USA (S-Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon pumilus Nutt.; J. Acad. Philad. 7: 46 (1834)

Name: Salmon River beardtongue

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; Coult. Bot. Gaz. 27: 455 (1899)

Name: Snow Mountain beardtongue

Distribution: USA (California)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon putus A.Nelson; Univ. Wyoming Publ. Bot. 1: 131 (1926)

Name: Black River beardtongue

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 280 (1898)

Name: Matroot beardtongue

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

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

Distribution: USA (California)

76 USA

Synonyms: hidden

= Penstemon kleei Greene; Bull. Torr. 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

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

Distribution: USA (Nevada: White Pine Co.)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon richardsonii Douglas; Lindl. Bot. Reg. t. 1121 (1828)

Name: Richardson´s beardtongue

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. Saint-Pétersbourg 5: 346 (1839)

variant :

var. dentatus (D.D.Keck) Cronquist; Vasc. Pl. Pacif. N. W. [C. L. Hitchcock & 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; Gartenfl. 239 (1872)

Name: Roezl´s beardtongue

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. [Jeps.] 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; Loudon Hort. Brit. 243 (1830)

79 MEX

Synonyms: hidden

= Chelone rosea Cerv. ex Sweet; Brit. Fl. Gard. 3: t. 230 (1828)

= Penstemon campanulatus f. roseus (G.Don) Voss; Vilm. Blumengärtn. ed. 3. 1: 768 (1894)

= Penstemon kunthii G.Don; Loudon Hort. Brit. 243 (1830)

species :

Penstemon rostriflorus Kellogg; Proc. Calif. Acad. Sci. 2: 15 (1863)

Name: Bridges beardtongue

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; Beissner et al., Handb. Laubholzben.: 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; Am. Midl. Naturalist 18: 792, in clavi, 802 (1937)

Name: Wassuk Range beardtongue

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Spectabiles

species :

Penstemon rupicola (Piper) Howell; Fl. N. W. Amer. 1: 510 (1901)

Name: Cliff beardtongue

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 281 (1898)

Name: Rydberg´s beardtongue

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. 4: 402 (1959)

variant :

var. aggregatus (Pennell) K.Holmgren; Brittonia 31(1): 106 (1979)

Name: Meadow beardtongue

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

73 USA 76 USA

Synonyms: hidden

= Penstemon aggregatus Pennell; Contrib. US. Nat. 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; Cronquist et al., Intermountain Fl., Vasc. Pl. Intermountain West, U. S. A. 4: 390 (1984)

Name: Herbaceous beardtongue

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. Obs. 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

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

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

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

variant :

var. albifluvis (England) N.H.Holmgren; Cronquist et al., Intermountain Fl., Vasc. Pl. Intermountain West, U. S. A. 4: 442 (1984)

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Synonyms: hidden

= Penstemon albifluvis England; Great Basin Nat. 42(3): 367 (1982)

variant :

var. cyanomontanus Neese; Great Basin Nat. 46(3): 460 (1986)

Name: Neese´s Blue Mountain beardtongue

Distribution: USA (Colorado, Utah)

73 USA 76 USA

variant :

var. garrettii (Pennell) N.H.Holmgren; Cronquist et al., Intermountain Fl., Vasc. Pl. Intermountain West, U. S. A. 4: 442 (1984)

Name: Garrett´s beardtongue

Distribution: USA (Utah, Wyoming)

73 USA 76 USA

Synonyms: hidden

= Penstemon garrettii Pennell; Contrib. US. Nat. 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

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; Coult. & Nelson, Man. Bot. Rocky Mt., ed. 2: 444 (1909)

variant :

var. versicolor (Pennell) C.C.Freeman; PhytoKeys 80: 37 (2017)

Name: Variable-color beardtongue

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; Am. Midl. Naturalist 23: 595 (1937 publ. 1940)

Name: Shortlobe beardtongue

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 Mts. 449 (1909)

Name: Little-cup beardtongue

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; Hook. Fl. Bor. Amer. 2: 95 (1814), ex Sm.

Name: Serrulate beardtongue

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, ed. 2: 657 (1866)

species :

Penstemon smallii A.Heller; Bull. Torr. Bot. Club 21: 25 et 304 (1894)

Name: Small´s beardtongue

Distribution: USA (Alabama, Georgia, North Carolina, South Carolina, Tennessee)

78 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon spatulatus Pennell; Not. Nat. Acad. Nat. Sci. Philad., No. 71, 10 (1941)

Name: Wallowa beardtongue

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

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. 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. Rail. Rep. 4: 119 (1857)

Name: Showy beardtongue

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.: 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; Torr. Bot. Mex. Bound. 112 (1858 publ. 1859)

Name: Sonoran beardtongue

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

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 642 (1904)

Name: Mancos beardtongue

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

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.; Frémont, Rep. Exped. Rocky Mts.: 89 (1845), nom. illeg.

= Penstemon strictus subsp. angustus Pennell; Contr. U. S. Natl. Herb. 20: 356 (1920)

species :

Penstemon subglaber Rydb.; Bull. Torr. Bot. Club 36: 688 (1909)

Name: Smooth beardtongue

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; Not. Nat. Acad. Nat. Sci. Philad., No. 71, 13 (1941)

Name: Finetooth beardtongue

Distribution: USA (Oregon, Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon subulatus M.E.Jones; Contrib. Western Bot. 12: 63 (1908)

Name: Hackberry beardtongue

Distribution: USA (Arizona)

76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon sudans M.E.Jones; Contrib. Western Bot. 8: 37 (1898)

Name: Susanville beardtongue

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

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

76 USA 77 USA 79 MEX

Remarks: subgen. Penstemon, sect. Gentianoides

Synonyms: hidden

= Penstemon puniceus A.Gray; Emory, Rep. U.S. Mex. Bound. 2(1): 113 (1859), nom. illeg.

= Penstemon puniceus var. parryi A.Gray; Emory, Rep. U.S. Mex. Bound. 2(1): 113 (1859)

species :

Penstemon tenuiflorus Pennell; Addsonia 4: 79 (1919)

Name: Eastern white-flower beardtongue

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. 1061 (1903)

Name: Sharpsepal beardtongue

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 3: 23 (1901)

Name: Germander beardtongue

Distribution: USA (Colorado)

73 USA

Remarks: subgen. Penstemon, sect. Caespitosi

species :

Penstemon thompsoniae (A.Gray) Rydb.; Bull. Torr. Bot. Club 36: 690 (1909)

Name: Thompson´s beardtongue

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

76 USA

Remarks: subgen. Penstemon, sect. Caespitosi

Synonyms: hidden

= Penstemon caespitosus var. thompsoniae (A.Gray) A.Nelson; Publ. Univ. Wyoming 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. Torr. Bot. Club 64: 362 (1937)

= Penstemon thompsoniae var. desperatus Neese; Great Basin Nat. 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. Rail. Rep. 7: 15 (1856)

Name: Thurber´s beardtongue

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. Obs. Crit. 1: 223 (1906)

= Penstemon ambiguus var. thurberi (Torr.) A.Gray; Proc. Amer. Acad. Arts 6: 65 (1862)

= Penstemon scoparius A.Nelson; Publ. Sci. Univ. Wyoming, Bot. 1: 132 (1926)

= Penstemon thurberi var. anestius Reveal & Beatley; Great Basin Naturalist 34: 230 (1974)

species :

Penstemon tidestromii Pennell; Contrib. US. Nat. Herb. 20: 379 (1920)

Name: Tidestrom´s beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

Synonyms: hidden

= Penstemon leptanthus Pennell; Contrib. US. Nat. Herb. 20: 339 (1920)

species :

Penstemon tiehmii N.H.Holmgren; Brittonia 50(2): 159 (1998)

Name: Tiehm´s beardtongue

Distribution: USA (Nevada)

76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

species :

Penstemon tracyi D.D.Keck; Am. Midl. Naturalist 23: 603 (1940)

Name: Trinity beardtongue

Distribution: USA (California: Siskiyou Co., Trinity Co.)

76 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon triflorus A.Heller; Contrib. Herb. Frankl. Bot. Exp. S. Texas 1: 92 t. 8 (1895)

subspecies :

subsp. triflorus

Name: Heller´s beardtongue

Distribution: USA (Texas)

77 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon helleri Small; Bull. Torrey Bot. Club 471 (1898)

subspecies :

subsp. integrifolius Pennell; Acad. Nat. Sci. Philadelphia Monogr. 1: 251 (1935)

Name: Heller´s beardtongue

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

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. Am. Phil. Soc. N. S. 5: 181 (1837)

Name: Tube beardtongue

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; Contrib. US. Nat. Herb. 20: 350 (1920)

Name: Uinta Mountain beardtongue

Distribution: USA (Utah)

76 USA

Remarks: subgen. Penstemon, sect. Glabri

species :

Penstemon unilateralis Rydb.; Bull. Torr. Bot. Club 33: 150 (1906)

Name: Oneside beardtongue

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

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

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Gentianoides

species :

Penstemon venustus Douglas; Bot. Reg. t. 1309 (1830)

Name: Lovely beardtongue

Distribution: USA (California, Idaho, Oregon, Utah, Washington State)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Saccanthera

Synonyms: hidden

= Penstemon amoenus Kunze; Index Seminum (LZ, Lipsiensis) 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

Distribution: USA (Colorado, Wyoming)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon virgatus A.Gray; Torr. Bot. Mex. Bound. 112 (1858 publ. 1859)

Name: Upright blue beardtongue

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

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

Distribution: USA (Washington State)

73 USA

Remarks: subgen. Penstemon, sect. Penstemon

species :

Penstemon watsonii A.Gray; Syn. Fl. N. Am. 2: I. 267 (1878)

Name: Watson´s beardtongue

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

Synonyms: hidden

= Paederota cochlearifolia J.Koenig ex Rottb.; Numer. List [Wallich] no. 3920 (1831), nom. inval.

species :

Penstemon whippleanus A.Gray; Proc. Amer. Acad. Arts 6: 73 (1862)

Name: Whipple´s beardtongue

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.: 514 (1901)

species :

Penstemon wilcoxii Rydb.; Bull. Torrey Bot. Club 28 (1901)

Name: Wilcox´s beardtongue

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. Mexico, No. 24, 50 (1959)

Distribution: Mexico (Chihuahua, Durango, Nuevo Leon, 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

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

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

Distribution: USA (Colorado, Utah)

73 USA 76 USA

Remarks: subgen. Penstemon, sect. Cristati

Synonyms: hidden

= Penstemon acaulis var. yampaensis (Penland) Neese; Great Basin Nat. 46(3): 459 (1986)

species :

Penstemon ×bryantiae D.D.Keck; Amer. Midl. Naturalist 18: 820 (1937)

Name: Bryant´s beardtongue

Distribution: USA (California)

76 USA

species :

Penstemon ×crideri A.Nelson; Am. 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

Remarks: P. centranthifolius x grinnellii

species :

Penstemon ×jonesii Pennell; Contrib. US. Nat. 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: P. 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

Remarks: P. 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 24.11 (November 5th, 2024)

Covering 355,576 accepted species,
8,715 hybrids, 47,863 accepted infraspecific taxa and 1,000,581 synonyms,
in total 1,412,785* 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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Search

+ Family

Filter

Order

Family (26)

Genus (99)

Display options

A complete, synonymic checklist of the Higher Plants of the World

Version 24.11 (November 5th, 2024)

Covering 355,576 accepted species, 8,715 hybrids, 47,863 accepted infraspecific taxa and 1,000,581 synonyms, in total 1,412,785* 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 355,576 accepted species,
8,715 hybrids, 47,863 accepted infraspecific taxa and 1,000,581 synonyms,
in total 1,412,785* names

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