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Plantaginaceae
Penstemon
Penstemon procerus
Penstemon procerus
Small-flower penstemon
Dougl. ex Graham 1829 -
Edinburgh New Philos. J. 7:348. 1829
Specifications
Images
Synonyms
Penstemon procerus subsp. typicus
D.D.Keck
Penstemon confertus var. procerus
(Douglas ex Graham) Coville