This page provides a complete list of taxa that have images. Use the controls below to browse and search for images by family, genus, or species.

Penstemon abietinus

Penstemon acaulis

Penstemon acuminatus

Penstemon albidus

Penstemon ambiguus

Penstemon ambiguus var. laevissimus

Penstemon ammophilus

Penstemon angustifolius

Penstemon angustifolius var. caudatus

Penstemon angustifolius var. dulcis

Penstemon angustifolius var. venosus

Penstemon angustifolius var. vernalensis

Penstemon arenicola

Penstemon attenuatus var. pseudoprocerus

Penstemon atwoodii

Penstemon auriberbis

Penstemon baccharifolius

Penstemon barbatus

Penstemon barbatus var. torreyi

Penstemon barbatus var. trichander

Penstemon bicolor

Penstemon bracteatus

Penstemon bradburyi

Penstemon breviculus

Penstemon buckleyi

Penstemon caespitosus

Penstemon caespitosus var. desertipicti

Penstemon caespitosus var. perbrevis

Penstemon cardinalis

Penstemon cardinalis var. regalis

Penstemon carnosus

Penstemon centranthifolius

Penstemon clutei

Penstemon cobaea

Penstemon comarrhenus

Penstemon compactus

Penstemon concinnus

Penstemon confertus

Penstemon confusus

Penstemon crandallii

Penstemon crandallii var. atratus

Penstemon crandallii var. glabrescens

Penstemon crandallii var. procumbens

Penstemon crandallii var. ramaleyi

Penstemon cusickii

Penstemon cyananthus

Penstemon cyananthus var. judyae

Penstemon cyananthus var. subglaber

Penstemon cyanocaulis

Penstemon cyathophorus

Penstemon dasyphyllus

Penstemon davidsonii

Penstemon davidsonii var. praeteritus

Penstemon deaveri

Penstemon degeneri

Penstemon deustus

Penstemon deustus var. pedicellatus

Penstemon digitalis

Penstemon distans

Penstemon dolius

Penstemon duchesnensis

Penstemon eatonii

Penstemon eatonii var. exsertus

Penstemon eatonii var. undosus

Penstemon eriantherus

Penstemon eriantherus var. cleburnei

Penstemon euglaucus

Penstemon eximius

Penstemon fasciculatus

Penstemon fendleri

Penstemon flowersii

Penstemon franklinii

Penstemon fremontii

Penstemon fruticosus

Penstemon glaber

Penstemon glaber var. alpinus

Penstemon glaber var. brandegeei

Penstemon goodrichii

Penstemon gracilentus

Penstemon gracilis

Penstemon griffinii

Penstemon hallii

Penstemon harbourii

Penstemon harringtonii

Penstemon hesperius

Penstemon heterophyllus

Penstemon hirsutus

Penstemon humilis

Penstemon humilis var. brevifolius

Penstemon humilis var. obtusifolius

Penstemon idahoensis

Penstemon immanifestus

Penstemon inflatus

Penstemon jamesii

Penstemon janishiae

Penstemon kingii

Penstemon laevis

Penstemon lanceolatus

Penstemon laricifolius

Penstemon laricifolius var. exilifolius

Penstemon laxiflorus

Penstemon laxus

Penstemon leiophyllus

Penstemon lentus

Penstemon lentus var. albiflorus

Penstemon leonardii

Penstemon leonardii var. higginsii

Penstemon leonardii var. patricus

Penstemon linarioides

Penstemon linarioides var. coloradoensis

Penstemon linarioides var. maguirei

Penstemon linarioides var. sileri

Penstemon longiflorus

Penstemon luculentus

Penstemon marcusii

Penstemon mensarum

Penstemon moffattii

Penstemon montanus

Penstemon mucronatus

Penstemon nanus

Penstemon nitidus

Penstemon nudiflorus

Penstemon oklahomensis

Penstemon oliganthus

Penstemon ophianthus

Penstemon osterhoutii

Penstemon pachyphyllus

Penstemon pachyphyllus var. congestus

Penstemon pallidus

Penstemon palmeri

Penstemon palmeri var. eglandulosus

Penstemon parryi

Penstemon parvus

Penstemon paysoniorum

Penstemon pinifolius

Penstemon pinorum

Penstemon platyphyllus

Penstemon procerus

Penstemon procerus var. aberrans

Penstemon pseudoputus

Penstemon pseudospectabilis

Penstemon pseudospectabilis var. connatifolius

Penstemon pumilus

Penstemon putus

Penstemon radicosus

Penstemon retrorsus

Penstemon richardsonii var. dentatus

Penstemon roezlii

Penstemon rostriflorus

Penstemon rydbergii

Penstemon rydbergii var. aggregatus

Penstemon rydbergii var. oreocharis

Penstemon saxosorum

Penstemon scariosus

Penstemon scariosus var. albifluvis

Penstemon scariosus var. cyanomontanus

Penstemon scariosus var. garrettii

Penstemon scariosus var. jolynniae

Penstemon secundiflorus

Penstemon secundiflorus var. versicolor

Penstemon sepalulus

Penstemon serrulatus

Penstemon speciosus

Penstemon spectabilis

Penstemon stenophyllus

Penstemon strictiformis

Penstemon strictus

Penstemon subglaber

Penstemon subulatus

Penstemon superbus

Penstemon teucrioides

Penstemon thompsoniae

Penstemon thurberi

Penstemon tidestromii

Penstemon uintahensis

Penstemon unilateralis

Penstemon utahensis

Penstemon venustus

Penstemon virens

Penstemon virgatus

Penstemon virgatus var. asa-grayi

Penstemon wardii

Penstemon watsonii

Penstemon whippleanus

Penstemon wilcoxii

Penstemon wrightii

Penstemon xylus

Penstemon yampaensis