Ipomoea obscura var. obscura [family CONVOLVULACEAE]
Convolvulus obscurus L. [family CONVOLVULACEAE], Sp. Pl., ed. 2 : 220 (1762)
Ipomoea luteola R. Br. [family CONVOLVULACEAE], Prodr. : 485 (1810). Type : Australia, Queensland, Keppell Bay, R. Brown 2744 (BM, holo.!)
Ipomoea fragilis Choisy [family CONVOLVULACEAE], in DC., Prodr. 9 : 372 (1845); Bak. & Rendle in F.T.A. 4 (2) : 165 (1905). Type : South Africa, Cape Province, Maadji Mt., Burchell 2362 (G, hololecto. !, K, isolecto. !)
Ipomoea acutiflora A. Rich. [family CONVOLVULACEAE], Tent. Fl. Abyss. 2 : 71 (1851). Type : Ethiopia, Choa, Quartin Dillon & Petit (P, holo.!)
Ipomoea saltiana Rendle [family CONVOLVULACEAE], in J.B. 32 : 178 (1894). Type : Ethiopia, without locality, Salt (BM, holo.!)
Ipomoea obscura Hall.f. var. abyssinica [family CONVOLVULACEAE], in E.J. 28 : 39 (1899). Type : Ethiopia, Gapdia, Schimper 801 (B, lecto. †, G, K, W, isolecto. !)
Ipomoea obscura Hall.f. var. indica [family CONVOLVULACEAE], in E.J. 28 : 39 (1899). Type : as I. obscura var. obscura.