Taxonomy Explorer

Penstemon abietinus

Penstemon absarokensis

Penstemon acaulis

Penstemon acuminatus

Penstemon alamosensis

Penstemon albertinus

Penstemon albidus

Penstemon albomarginatus

Penstemon ambiguus

Penstemon ammophilus

Penstemon anguineus

Penstemon angustifolius

Penstemon arenarius

Penstemon arenicola

Penstemon aridus

Penstemon arkansanus

Penstemon attenuatus

Penstemon atwoodii

Penstemon auriberbis

Penstemon australis

Penstemon azureus

Penstemon baccharifolius

Penstemon barbatus

Penstemon barnebyi

Penstemon barrettiae

Penstemon bicolor

Penstemon bracteatus

Penstemon breviculus

Penstemon brevisepalus

Penstemon buckleyi

Penstemon caesius

Penstemon caespitosus

Penstemon calcareus

Penstemon californicus

Penstemon calycosus

Penstemon campanulatus

Penstemon canescens

Penstemon cardinalis

Penstemon cardwellii

Penstemon carnosus

Penstemon caryi

Penstemon centranthifolius

Penstemon cinicola

Penstemon clevelandii

Penstemon clutei

Penstemon cobaea

Penstemon comarrhenus

Penstemon compactus

Penstemon concinnus

Penstemon confertus