Calystegia longipes (S. Watson) Brummitt [ Convolvulus longipes S. Watson]
no HD illustration available (m1)
Calystegia longipes (S. Watson) Brummitt [ Convolvulus longipes S. Watson] [Convolvulaceae]
J.T. Rothrock, Rep. U.S. Geogr. Surv., Wheeler: t. 20 (1878) [W.H. Seaman]