Penstemon

Penstemon scariosus

Plateau penstemon

Penstemon subulatus

Penstemon washingtonensis

Penstemon spectabilis var. subinteger

Penstemon triphyllus var. triphyllus

Penstemon triphyllus var. infernalis

Penstemon utahensis

Utah penstemon

Penstemon triflorus

Heller's beardtongue

Penstemon whippleanus

Whipple's penstemon

Penstemon virgatus var. asa-grayi

Penstemon virgatus var. virgatus

Penstemon isophyllus

Penstemon tenuifolius

Penstemon concinnus

Tunnel springs beardtongue

Penstemon × hybridus

Penstemon acuminatus var. latebracteatus

Penstemon albomarginatus

Penstemon caespitosus

Mat penstemon

Penstemon angustifolius var. caudatus

Penstemon crandallii subsp. crandallii