Penstemon hirsutus (L.) Willd.
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Family
Scrophulariaceae (Magnoliophyta)
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Scientific Name
Penstemon hirsutus (L.) Willd.
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Common Names
hairy beardtongue
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Floras and Monographs
Penstemon hirsutus (L.) Willd.: [Book] Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.