Ipomoea philomega (Vell.) House Ipomoea philomega (Vell.) House in Ann. New York Acad. Sci. 18: 246. 1908 sec. Carranza 2008≡Convolvulus philomega Vell., Fl. Flumin.: 74. 1825 syn. sec. Tropicos 2013=Ipomoea demerariana Choisy, Prodr. 9: 361. 1845 syn. sec. Tropicos 2013