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 acuminatus

Penstemon acuminatus var. latebracteatus

Penstemon alamosensis

Penstemon albidus

Penstemon albomarginatus

Penstemon ambiguus

Penstemon ambiguus var. ambiguus

Penstemon ambiguus var. laevissimus

Penstemon anguineus

Penstemon angustifolius

Penstemon angustifolius var. caudatus

Penstemon angustifolius var. venosus

Penstemon apateticus

Penstemon arenarius

Penstemon arenicola

Penstemon arkansanus

Penstemon attenuatus var. militaris

Penstemon australis

Penstemon azureus

Penstemon baccharifolius

Penstemon barbatus

Penstemon barbatus ssp. barbatus

Penstemon barbatus ssp. torreyi

Penstemon barbatus var. barbatus

Penstemon barnebyi

Penstemon bicolor

Penstemon bicolor ssp. roseus

Penstemon bracteatus

Penstemon breviculus

Penstemon buckleyi

Penstemon caespitosus

Penstemon caespitosus var. desertipicti

Penstemon caespitosus var. perbrevis

Penstemon californicus

Penstemon calycosus

Penstemon campanulatus

Penstemon campanulatus ssp. chihuahuensis

Penstemon canescens

Penstemon cardinalis

Penstemon cardinalis ssp. cardinalis

Penstemon cardwellii

Penstemon carnosus

Penstemon centranthifolius

Penstemon clevelandii

Penstemon clevelandii ssp. angelicus

Penstemon clevelandii ssp. connatus

Penstemon clevelandii ssp. mohavensis

Penstemon clevelandii var. clevelandii

Penstemon clutei

Penstemon cobaea

Penstemon comarrhenus

Penstemon confertus

Penstemon confusus

Penstemon corymbosus

Penstemon crandallii

Penstemon crandallii ssp. glabrescens

Penstemon cyananthus

Penstemon cyananthus ssp. subglaber

Penstemon cyananthus var. cyananthus

Penstemon cyananthus var. subglaber

Penstemon cyaneus

Penstemon cyanocaulis

Penstemon dasyphyllus

Penstemon davidsonii

Penstemon davidsonii var. praeteritus

Penstemon deaveri

Penstemon deustus

Penstemon deustus var. pedicellatus

Penstemon digitalis

Penstemon discolor

Penstemon distans

Penstemon duchesnensis

Penstemon eatonii

Penstemon eatonii ssp. eatonii

Penstemon eatonii ssp. exsertus

Penstemon eatonii ssp. undosus

Penstemon eriantherus

Penstemon euglaucus

Penstemon eximius

Penstemon fasciculatus

Penstemon fendleri

Penstemon flavescens

Penstemon floribundus

Penstemon flowersii

Penstemon fruticiformis

Penstemon fruticiformis ssp. amargosae

Penstemon gairdneri

Penstemon gairdneri var. gairdneri

Penstemon galloensis

Penstemon gentianoides

Penstemon gentryi

Penstemon glaber

Penstemon gracilis

Penstemon grahamii

Penstemon grandiflorus

Penstemon griffinii

Penstemon grinnellii

Penstemon grinnellii var. scrophularioides

Penstemon guadalupensis

Penstemon harbourii

Penstemon harringtonii

Penstemon havardii

Penstemon helleri

Penstemon henricksonii

Penstemon heterodoxus

Penstemon hirsutus

Penstemon humilis

Penstemon humilis var. humilis

Penstemon humilis var. obtusifolius

Penstemon incertus

Penstemon inflatus

Penstemon isophyllus

Penstemon jamesii

Penstemon kingii

Penstemon kunthii

Penstemon labrosus

Penstemon laetus

Penstemon laevigatus

Penstemon laevis

Penstemon laxiflorus

Penstemon leiophyllus

Penstemon leiophyllus var. francisci-pennellii

Penstemon leiophyllus var. keckii

Penstemon lentus

Penstemon lentus var. albiflorus

Penstemon lentus var. lentus

Penstemon leonardii

Penstemon leonardii var. leonardii

Penstemon leonensis

Penstemon linarioides

Penstemon linarioides ssp. coloradoensis

Penstemon linarioides ssp. linarioides

Penstemon linarioides ssp. sileri

Penstemon longiflorus

Penstemon mensarum

Penstemon metcalfei

Penstemon miniatus

Penstemon miser

Penstemon moffatii

Penstemon moriahensis

Penstemon multiflorus

Penstemon murrayanus

Penstemon navajoa

Penstemon neomexicanus

Penstemon neotericus

Penstemon newberryi

Penstemon nudiflorus

Penstemon oklahomensis

Penstemon oliganthus

Penstemon ophianthus

Penstemon osterhoutii

Penstemon pachyphyllus

Penstemon pachyphyllus var. congestus

Penstemon pachyphyllus var. pachyphyllus

Penstemon pallidus

Penstemon palmeri

Penstemon palmeri var. eglandulosus

Penstemon palmeri var. palmeri

Penstemon parryi

Penstemon penlandii

Penstemon petiolatus

Penstemon pinifolius

Penstemon platyphyllus

Penstemon procerus

Penstemon pseudoputus

Penstemon pseudospectabilis

Penstemon pseudospectabilis ssp. connatifolius

Penstemon pseudospectabilis ssp. pseudospectabilis

Penstemon pudicus

Penstemon putus

Penstemon radicosus

Penstemon ramosus

Penstemon roezlii

Penstemon rostriflorus

Penstemon rydbergii

Penstemon rydbergii var. aggregatus

Penstemon rydbergii var. varians

Penstemon scariosus var. albifluvis

Penstemon secundiflorus

Penstemon sepalulus

Penstemon serrulatus

Penstemon spatulatus

Penstemon speciosus

Penstemon spectabilis

Penstemon spectabilis ssp. subinteger

Penstemon stenophyllus

Penstemon strictiformis

Penstemon strictus

Penstemon subglaber

Penstemon subulatus

Penstemon superbus

Penstemon tenuiflorus

Penstemon tenuis

Penstemon thompsoniae

Penstemon thurberi

Penstemon triflorus

Penstemon triflorus var. integrifolius

Penstemon triphyllus

Penstemon tubiflorus

Penstemon uintahensis

Penstemon unilateralis

Penstemon utahensis

Penstemon venustus

Penstemon virgatus

Penstemon watsonii

Penstemon whippleanus

Penstemon wislizeni

Penstemon wislizenii

Penstemon wrightii

Penstemonia clarkei

Penstemonia edwardsii

Penstemonia hennei