Penstemon

Penstemon isophyllus

Penstemon roseus

Penstemon punctatus

Penstemon albidus

White beardtongue

Penstemon ambiguus

Bush penstemon

Penstemon angustifolius

Broadbeard beardtongue

Penstemon auriberbis

Penstemon cobaea

Cobaea beardtongue

Penstemon jamesii

James' beardtongue

Penstemon laxiflorus

Nodding beardtongue

Penstemon procerus

Small-flower penstemon

Penstemon tubaeflorus

Penstemon albertinus

Alberta beardtongue

Penstemon arenarius

Penstemon arkansanus

Arkansas beardtongue

Penstemon attenuatus

Penstemon bicolor

Penstemon breviculus

Penstemon calcareus

Limestone beardtongue

Penstemon californicus