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Plantaginaceae
Penstemon
Penstemon platyphyllus
Penstemon platyphyllus
Broadleaf penstemon
Rydb. 1909 -
Bull. Torrey Bot. Club 36: 690 (1909)
Specifications
Images
Synonyms
Penstemon heterophyllus var. latifolius
S.Watson
Penstemon latifolius
(S.Watson) Krautter