Penstemon labrosus (A. Gray) Hook.f.
no HD illustration available (m1)
Penstemon labrosus (A. Gray) Hook.f. [ Penstemon barbatus var. labrosus A. Gray] [Scrophulariaceae]
W. Curtis, Bot. Mag., vol. 110 [ser. 3, vol. 40]: t. 6738 (1884) [A. Barnard]