Everard, B., Wild flowers of the world (1970)
Wild Fl. World

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t. 164 f. E

Penstemon humilis Nutt. ex A. Gray

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name cited:
Penstemon humilis Nutt. ex A. Gray

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drawing: B. Everard

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family: Scrophulariaceae
subfamily: Antirrhinoideae
tribe: Cheloneae

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epithet: humilis,-is,-e

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Illustration contributed by:

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link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=290191

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synonyms: