Ipomoea caudata Fernald Ipomoea caudata Fernald, Proc. Amer. Acad. Arts 36(27): 498. 1901 sec. Rzedowski & Carranza-González 2023=Ipomoea hintonii L.O. Williams, Econ. Bot. 24: 400. 1970 syn. sec. The Plant List 2013