Penstemon

Penstemon humilis var. humilis

Humble beardtongue

Penstemon caespitosus var. caespitosus

Tufted beardtongue

Penstemon attenuatus var. attenuatus

Taper-leaf beardtongue

Penstemon scariosus var. jolynniae

Penstemon salmonensis

Penstemon hesperius

Penstemon dugesii

Penstemon angelicus

Penstemon procerus var. aberrans

Penstemon crandallii var. ramaleyi

Penstemon triflorus var. integrifolius

Penstemon albifluvis

Penstemon acuminatus var. latibracteatus

Penstemon wislizeni

Penstemon jaliscensis

Penstemon × moronensis

Penstemon nitidus var. nitidus

Penstemon cobaea var. cobaea

Penstemon montanus var. montanus

Cordroot beardtongue

Penstemon spectabilis var. spectabilis

Showy penstemon