Penstemon Schmidel. Beardtongue, Penstemon.
Contributed by Alan S. Weakley and Dwayne Estes
A genus of about 280 species, perennial herbs and shrubs, of w. North America, e. North America, and (a single species) ne. Asia.
Ref: Bennett (1963); Clements, Baskin, & Baskin (1998); Estes (2012); Freeman (2019d) In Flora of North America Editorial Committee (2019); Pennell (1935). Show full citations.
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© Will Stuart | 
© Alan Cressler: Penstemon dissectus, Broxton Rocks Preserve, The Nature Conservancy, Coffee County, Georgia 3 by Alan Cressler | Penstemon dissectus source | Original Image ⭷
© Paul Marcum | 
© Alan Cressler: Penstemon australis, Talbot County, Georgia 2 by Alan Cressler | Penstemon australis source | Original Image ⭷
© Brian Finzel, some rights reserved (CC BY-SA), uploaded by Brian Finzel | Penstemon alluviorum source | Original Image ⭷ Warning: was NOT research grade.
© Sonnia Hill |