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Plantaginaceae
Penstemon
Penstemon thurberi
Penstemon thurberi
Thurber's beardtongue
Torr. 1856 -
Pacif. Railr. Rep. Parke, Bot. 7(3): 15 (1856)
Specifications
Images
Synonyms
Penstemon ambiguus var. thurberi
(Torr.) A.Gray
Penstemon thurberi var. anestius
Reveal & Beatley
Penstemon scoparius
A.Nelson
Leiostemon thurberi
(Torr.) Greene