Penstemon

Penstemon parvulus

Penstemon rattanii

Rattan's beardtongue

Penstemon platyphyllus

Broadleaf penstemon

Penstemon acuminatus

Sharpleaf penstemon

Penstemon glandulosus

Penstemon oklahomensis

Penstemon neotericus

Plumas county beardtongue

Penstemon kingii

Penstemon pinifolius

Pineneedle beardtongue

Penstemon triphyllus

Penstemon euglaucus

Glaucous beardtongue

Penstemon deaveri

Penstemon harbourii

Penstemon patens

Penstemon amphorellae

Penstemon albomarginatus

Penstemon linarioides var. linarioides

Penstemon havardii

Big bend beardtongue

Penstemon eximius

Penstemon stenophyllus