Penstemon

Penstemon cardwellii

Cardwell's beardtongue

Penstemon × crideri

Penstemon cyaneus

Blue penstemon

Penstemon cyanocaulis

Penstemon cyathophorus

Sagebrush beardtongue

Penstemon dasyphyllus

Cochise beardtongue

Penstemon degeneri

Penstemon dissectus

Penstemon dolius

Penstemon elegantulus

Penstemon euglaucus

Glaucous beardtongue

Penstemon fruticosus

Bush penstemon

Penstemon glaucinus

Penstemon goodrichii

Penstemon grahamii

Penstemon guadalupensis

Penstemon harbourii

Penstemon harringtonii

Penstemon havardii

Big bend beardtongue

Penstemon plagapineus