Penstemon
Plantaginaceae·Genus
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Species in Penstemon(304)
Penstemon imberbis
Firleaf Beardtongue
Penstemon abietinus
Absaroka Range Beardtongue
Penstemon absarokensis
Stemless Beardtongue
Penstemon acaulis
Sharpleaf Penstemon
Penstemon acuminatus
Alamo beardtongue
Penstemon alamosensis
Alberta beardtongue
Penstemon albertinus
red-line beardtongue
Penstemon albidus
White-margined Beardtongue
Penstemon albomarginatus
bush penstemon
Penstemon ambiguus
Canaan Mountain beardtongue
Penstemon ammophilus
Penstemon amphorellae
Penstemon angelicus
Siskiyou Beardtongue
Penstemon anguineus
broadbeard beardtongue
Penstemon angustifolius
Dune Beardtongue
Penstemon arenarius
Red Desert penstemon
Penstemon arenicola
Stiff leaf beardtongue
Penstemon aridus
Arkansas Beardtongue
Penstemon arkansanus
Penstemon atropurpureus
Sulphur Beardtongue
Penstemon attenuatus
Kaiparowits Beardtongue
Penstemon atwoodii
Colorado Beardtongue
Penstemon auriberbis
Eustis Lake Beardtongue
Penstemon australis
Azure Beardtongue
Penstemon azureus
Rock Beardtongue
Penstemon baccharifolius
Beardlip Beardtongue
Penstemon barbatus
White River Valley beardtongue
Penstemon barnebyi
Barrett's Beardtongue
Penstemon barrettiae
Pinto Beardtongue
Penstemon bicolor
Bleakly's Beardtongue
Penstemon bleaklyi
Penstemon bolanius
Penstemon bolanus
Red Canyon Beardtongue
Penstemon bracteatus
large beardtongue
Penstemon bradburyi
Cary beardtongue
Penstemon caryi