Penstemon

Penstemon campanulatus

Bellflower beardtongue

Penstemon linarioides

Siler's penstemon

Penstemon laxiflorus

Nodding beardtongue

Penstemon pallidus

Pale beardtongue

Penstemon gracilis

Slender beardtongue

Penstemon angustifolius

Broadbeard beardtongue

Penstemon secundiflorus

Sidebells penstemon

Penstemon glaber

Sawsepal penstemon

Penstemon virens

Front range beardtongue

Penstemon virgatus

Upright blue beardtongue

Penstemon ambiguus

Bush penstemon

Penstemon grinnellii

Grinnell's beardtongue

Penstemon eriantherus

Fuzzytongue penstemon

Penstemon gentianoides

Gentian beardtongue

Penstemon canescens

Eastern gray beardtongue

Penstemon laetus

Gay penstemon

Penstemon tubaeflorus

Penstemon heterodoxus

Sierran penstemon

Penstemon speciosus

Royal penstemon

Penstemon cyananthus

Wasatch penstemon