Gattung: Penstemon Schmidel
Familie: Scrophulariaceae
Arten: über 250
Vorkommen: N-Amerika, O-Asien


Arten:
Penstemon abietinus Pennell
Penstemon absarokensis Evert
Penstemon acuminatus Dougl. ex Lindl.
Penstemon alamosensis Pennell & Nisbet
Penstemon albertinus Greene
Penstemon albidus Nutt.
Penstemon albomarginalis M. E. Jones
Penstemon albomarginatus M.E. Jones
Penstemon alluviorum Pennell
Penstemon ambiguus Torr.
Penstemon ammophilus N. Holmgren & L. Shultz
Penstemon anguineus Eastw.
Penstemon angustifolius Nutt. ex Pursh
Penstemon arenarius Greene
Penstemon arenicola A. Nels.
Penstemon aridus Rydb.
Penstemon arkansanus Pennell
Penstemon attenuatus Dougl. ex Lindl.
Penstemon atwoodii Welsh
Penstemon auriberbis Pennell
Penstemon australis Small
Penstemon azureus Benth.
Penstemon baccharifolius Hook.
Penstemon barbatus (Cav.) Roth
Penstemon barnebyi N. Holmgren
Penstemon barrettiae Gray
Penstemon bicolor (Brandeg.) Clokey & Keck
Penstemon bracteatus Keck
Penstemon breviculus (Keck) Nisbet & R.C. Jackson
Penstemon bryantiae Keck
Penstemon buckleyi Pennell
Penstemon caesius Gray
Penstemon caespitosus Nutt. ex Gray
Penstemon calcareus Brandeg.
Penstemon californicus (Munz & Johnston) Keck
Penstemon calycosus Small
Penstemon campanulatus (Cav.) Willd.
Penstemon canescens (Britt.) Britt.
Penstemon cardinalis Woot. & Standl.
Penstemon cardwellii T.J.Howell
Penstemon carnosus Pennell
Penstemon caryi Pennell
Penstemon centranthifolius Benth.
Penstemon cinicola Keck
Penstemon cleavelandii Gray
Penstemon clevelandii Gray
Penstemon clutei A.Nels.
Penstemon cobaea Nutt.
Penstemon comarrhenus Gray
Penstemon compactus (Keck) Crosswhite
Penstemon concinnus Keck
Penstemon confertus Dougl. ex Lindl.
Penstemon confusus M.E. Jones
Penstemon crandallii A.Nels.
Penstemon crideri A.Nels. (pro sp.)
Penstemon cusickii Gray
Penstemon cyananthus Hook.
Penstemon cyaneus Pennell
Penstemon cyanocaulis Payson
Penstemon cyathophorus Rydb.
Penstemon dasyphyllus Gray
Penstemon davidsonii Greene
Penstemon deamii Pennell
Penstemon deaveri Crosswhite
Penstemon debilis O'Kane & J.Anderson
Penstemon degeneri Crosswhite
Penstemon deustus Dougl. ex Lindl.
Penstemon digitalis Nutt. ex Sims
Penstemon diphyllus Rydb.
Penstemon discolor Keck
Penstemon dissectus Ell.
Penstemon distans N.Holmgren
Penstemon dolius M.E.Jones ex Pennell
Penstemon dubius A.Davids. (pro sp.)
Penstemon eatonii Gray
Penstemon elegantulus Pennell
Penstemon ellipticus Coult. & Fisher
Penstemon eriantherus Pursh
Penstemon euglaucus English
Penstemon eximius Keck
Penstemon fendleri Torr. & Gray
Penstemon filiformis (Keck) Keck
Penstemon flavescens Pennell
Penstemon floribundus D.Danley
Penstemon floridus Brandeg.
Penstemon flowersii Neese & Welsh
Penstemon franklinii Welsh
Penstemon fremontii Torr. & Gray ex Gray
Penstemon fruticiformis Coville
Penstemon fruticosus (Pursh) Greene
Penstemon gairdneri Hook.
Penstemon gibbensii Dorn
Penstemon glaber Pursh
Penstemon glandulosus Dougl.
Penstemon glaucinus Pennell
Penstemon globosus (Piper) Pennell & Keck
Penstemon goodrichii N.Holmgren
Penstemon gormanii Greene
Penstemon gracilentus Gray
Penstemon gracilis Nutt.
Penstemon grahamii Keck
Penstemon grandiflorus Nutt.
Penstemon griffinii A.Nels.
Penstemon grinnellii Eastw.
Penstemon guadalupensis Heller
Penstemon hallii Gray
Penstemon harbourii Gray
Penstemon harringtoni Penl.
Penstemon harringtonii Penl.
Penstemon hartwegii Benth.
Penstemon havardii Gray
Penstemon haydenii S.Wats.
Penstemon heterodoxus Gray
Penstemon heterophyllus Lindl.
Penstemon hirsutus (L.) Willd.
Penstemon humilis Nutt. ex Gray
Penstemon idahoensis Atwood & Welsh
Penstemon immanifestus N.Holmgren
Penstemon incertus Brandeg.
Penstemon inflatus Crosswhite
Penstemon jamesii Benth.
Penstemon janishiae N.Holmgren
Penstemon jonesii Pennell
Penstemon kingii S.Wats.
Penstemon labrosus (Gray) Hook.
Penstemon laetus Gray
Penstemon laevigatus Ait.
Penstemon laevis Pennell
Penstemon laricifolius Hook. & Arn.
Penstemon laxiflorus Pennell
Penstemon laxus A. Nels.
Penstemon leiophyllus Pennell
Penstemon lemhiensis (Keck) Keck & Cronq.
Penstemon lentus Pennell
Penstemon leonardii Rydb.
Penstemon leptanthus Pennell
Penstemon linarioides Gray
Penstemon longiflorus (Pennell) S.L.Clark
Penstemon lyallii (Gray) Gray
Penstemon marcusii (Keck) N. Holmgren
Penstemon mensarum Pennell
Penstemon mirus A.Nelson
Penstemon miser Gray
Penstemon moffatii Eastw.
Penstemon monoensis Heller
Penstemon montanus Greene
Penstemon moriahensis N.Holmgren
Penstemon multiflorus Chapman ex Benth.
Penstemon murcronatus N.Holmgr.
Penstemon murrayanus Hook.
Penstemon nanus Keck
Penstemon navajoa N.Holmgren
Penstemon neomexicanus Woot. & Standl.
Penstemon neotericus Keck
Penstemon newberryi Gray
Penstemon nitidus Dougl. ex Benth.
Penstemon nudiflorus Gray
Penstemon oklahomensis Pennell
Penstemon oliganthus Woot. & Standl.
Penstemon ophianthus Pennell
Penstemon osterhoutii Pennell
Penstemon ovatus Dougl. ex Hook.
Penstemon pachyphyllus Gray ex Rydb.
Penstemon pahutensis N. Holmgren
Penstemon pallidus Small
Penstemon palmeri Gray
Penstemon papillatus J.T.Howell
Penstemon parishii Gray (pro sp.)
Penstemon parryi (Gray) Gray
Penstemon parviflorus Pennell
Penstemon parvus Pennell
Penstemon patens (M.E.Jones) N. Holmgren
Penstemon payettensis A.Nels. & J.F.Macbr.
Penstemon paysoniorum Keck
Penstemon peckii Pennell
Penstemon peirsonii Munz & I.M.Johnston
Penstemon penlandii W.A.Weber
Penstemon pennellianus Keck
Penstemon perpulcher A.Nels.
Penstemon personatus Keck
Penstemon petiolatus Brandeg.
Penstemon pinifolius Greene
Penstemon pinorum L.& J.Shultz
Penstemon platyphyllus Rydb.
Penstemon pratensis Greene
Penstemon procerus Dougl. ex Graham
Penstemon pruinosus Dougl. ex Lindl.
Penstemon pseudoparvus Crosswhite
Penstemon pseudoputus (Crosswhite) N.Holmgren
Penstemon pseudospectabilis M.E.Jones
Penstemon pudicus Reveal & Beatley
Penstemon pumilus Nutt.
Penstemon purpusii Brandeg.
Penstemon putus A.Nels.
Penstemon radicosus A.Nels.
Penstemon ramosus Crosswhite
Penstemon rattanii Gray
Penstemon retrosus Payson Ex Pennell
Penstemon rhizomatosus N.Holmgren
Penstemon richardsonii Dougl. ex Lindl.
Penstemon roezlii Regel
Penstemon rostriflorus Kellogg
Penstemon rubicundus Keck
Penstemon rupicola (Piper) T.J.Howell
Penstemon rydbergii A.Nels.
Penstemon saxosorum Pennell
Penstemon scapoides Keck
Penstemon scariosus Pennell
Penstemon secundiflorus Benth.
Penstemon seorsus (A.Nels.) Keck
Penstemon sepalulus A.Nels.
Penstemon serrulatus Menzies ex Sm.
Penstemon smallii Heller Small's
Penstemon spatulatus Pennell
Penstemon speciosus Dougl. ex Lindl.
Penstemon spectabilis Thurb. ex Gray
Penstemon stenophyllus (Gray) T.J.Howell
Penstemon stephensii Brandeg.
Penstemon strictiformis Rydb.
Penstemon strictus Benth.
Penstemon subglaber Rydb.
Penstemon subserratus Pennell
Penstemon subulatus M.E.Jones
Penstemon sudans M.E.Jones
Penstemon superbus A.Nels.
Penstemon tenuiflorus Pennell
Penstemon tenuis Small
Penstemon teucrioides Greene
Penstemon thompsoniae (Gray) Rydb.
Penstemon thurberi Torr.
Penstemon tidestromii Pennell
Penstemon tiehmii N.Holmgren
Penstemon tracyi Keck
Penstemon triflorus Heller
Penstemon triphyllus Dougl. ex Lindl.
Penstemon tubiflorus Nutt.
Penstemon tusharensis N.Holmgren
Penstemon uintahensis Pennell
Penstemon unilateralis Rydb.
Penstemon utahensis Eastw.
Penstemon venustus Dougl. ex Lindl.
Penstemon virens Pennell ex Rydb.
Penstemon virgatus Gray
Penstemon wardii Gray
Penstemon washingtonensis Keck
Penstemon watsonii Gray
Penstemon whippleanus Gray
Penstemon wilcoxii Rydb.
Penstemon wrightii Hook.
Penstemon yampaensis Penl.