Penstemon

Penstemon stephensii

Stephens's beardtongue

Penstemon strictus

Rocky mountain penstemon

Penstemon subglaber

Smooth penstemon

Penstemon thompsoniae

Thompson's beardtongue

Penstemon thurberi

Thurber's beardtongue

Penstemon triphyllus

Penstemon utahensis

Utah penstemon

Penstemon venustus

Shrubby penstemon

Penstemon wardii

Penstemon wilcoxii

Wilcox's penstemon

Penstemon yampaensis

Penstemon ophianthus

Penstemon longiflorus

Penstemon strictiformis

Penstemon rostriflorus

Bridges's penstemon

Penstemon procerus var. aberrans

Penstemon crandallii var. ramaleyi

Penstemon triflorus var. integrifolius

Penstemon richardsonii var. curtiflorus

Penstemon imberbis