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Plantaginaceae
Penstemon
Penstemon sepalulus
Penstemon sepalulus
Littlecup beardtongue
A.Nelson 1909 -
J.M.Coulter & A.Nelson, Man. Bot. Rocky Mt., ed. 2: 449 (1909)
Specifications
Images
Synonyms
Penstemon heterophyllus
S.Watson
Penstemon azureus var. ambiguus
A.Gray