Penstemon hirsutus (L.) Willd. [ Penstemon pubescens Aiton]
no HD illustration available (m1)
Penstemon hirsutus (L.) Willd. [ Chelone hirsuta L.] [Scrophulariaceae]
B. Maund, Bot. Gard., vol. 1 : t. 11, fig. 2 (1825) [E.D. Smith]