Penstemon
Plantaginaceae·Genus
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Species in Penstemon(304)
Sonoran Beardtongue
Penstemon stenophyllus
Penstemon stenosepalus
Stephens' beardtongue
Penstemon stephensii
Mancos Beardtongue
Penstemon strictiformis
Rocky Mountain beardtongue
Penstemon strictus
Smooth Beardtongue
Penstemon subglaber
Finetooth Beardtongue
Penstemon subserratus
hackberry beardtongue
Penstemon subulatus
Susanville beardtongue
Penstemon sudans
Superb Beardtongue
Penstemon superbus
Eastern white-flower beardtongue
Penstemon tenuiflorus
Penstemon tenuifolius
Gulf Coast Penstemon
Penstemon tenuis
Penstemon tepicensis
Germander Beardtongue
Penstemon teucrioides
Thompson's beardtongue
Penstemon thompsoniae
Thurber's beardtongue
Penstemon thurberi
Sevier Plateau Beardtongue
Penstemon tidestromii
Tiehm's Beardtongue
Penstemon tiehmii
Tracy beardtongue
Penstemon tracyi
Heller's Beardtongue
Penstemon triflorus
Riggin's Beardtongue
Penstemon triphyllus
White Wand Beardtongue
Penstemon tubaeflorus
Penstemon tubiflorus
Uinta Mountain Beardtongue
Penstemon uintahensis
oneside penstemon
Penstemon unilateralis
Utah penstemon
Penstemon utahensis
Venus Beardtongue
Penstemon venustus
Front Range Beardtongue
Penstemon virens
One-sided beardtongue
Penstemon virgatus
Vizcaino beardtongue
Penstemon vizcainensis
Penstemon vulcanellus
Ward beardtongue
Penstemon wardii
Washington Beardtongue
Penstemon washingtonensis
Watson's Beardtongue
Penstemon watsonii
Wendt's beardtongue
Penstemon wendtiorum