Penstemon

Penstemon linarioides subsp. maguirei

Penstemon monoensis

Mono penstemon

Penstemon procerus var. tolmiei

Penstemon nitidus var. polyphyllus

Penstemon putus

Penstemon rattanii subsp. rattanii

Penstemon rhizomatosus

Penstemon roezlii

Roezl's penstemon

Penstemon tiehmii

Penstemon triflorus subsp. triflorus

Penstemon tubiflorus var. achoreus

Penstemon tusharensis

Penstemon virgatus

Upright blue beardtongue