Penstemon canescens (Britton) Britton. Appalachian Beardtongue. Phen: May-Jul. Hab: Woodlands, glades, forest edges, rocky woodlands, roadsides. Dist: PA and s. IN south to nc. GA, n. AL, and c. TN.
Origin/Endemic status: Endemic
Syn: = F, FNA17, G, Il, K4, S, Va, WV; > Penstemon brittonorum Pennell – S; > Penstemon canescens (Britton) Britton – K1, K3, Pa, RAB, W, Clements, Baskin, & Baskin (1998); >< Penstemon canescens (Britton) Britton – C; > Penstemon canescens (Britton) Britton var. brittonorum (Pennell) Pennell – Pennell (1935); ~ Penstemon canescens (Britton) Britton var. typica Pennell; > Penstemon canescens (Britton) Britton var. typicus – Pennell (1935)
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