Ipomoea purga (Wender.) Hayne
no HD illustration available (m1)
Ipomoea purga (Wender.) Hayne [ Convolvulus purga Wender.] [Convolvulaceae]
O.C. Berg, C.F. Schmidt, Atlas. Off. Pfl., vol. 1 : t. 33a (1891) [n.a.]