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Penstemon Schmidel. Beardtongue, Penstemon.

Contributed by Alan S. Weakley and Dwayne Estes

Key to Penstemon

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); Nelson & Stanford (2023); Pennell (1935). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Will Stuart | Penstemon australis | Original Image ⭷
image of plant© Alan Cressler: Penstemon dissectus, Broxton Rocks Preserve, The Nature Conservancy, Coffee County, Georgia 3 by Alan Cressler | Penstemon dissectus source | Original Image ⭷
image of plant© Paul Marcum | Penstemon tubaeflorus source | Original Image ⭷
image of plant© Alan Cressler: Penstemon australis, Talbot County, Georgia 2 by Alan Cressler | Penstemon australis source | Original Image ⭷
image of plant© Brian Finzel, some rights reserved (CC BY-SA), uploaded by Brian Finzel | Penstemon alluviorum source | Original Image ⭷ Warning: was NOT research grade.
image of plant© Sonnia Hill | Penstemon murrayanus | Original Image ⭷

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