Ipomoea crassipes var. crassipes Verdc. [family CONVOLVULACEAE], in Kew Bull. 14: 339 (1960); in F.T.E.A., Convolvulaceae: 98 (1963). Type as for the species.
Ipomoea calystegioides E. Mey. ex Drege [family CONVOLVULACEAE], Zwei Pflanz. Geogr. Doc.: 145, 153 (1843) nomen nudum.
Aniseia calystegioides Choisy [family CONVOLVULACEAE], in DC., Prodr. 9: 131 (1845). Type from S. Africa.
Ipomoea calystegioides Choisy Hall. f. [family CONVOLVULACEAE], in Engl. Bot. Jahrb. 18: 127 (1893).—Rendle in Journ. Linn. Soc., Bot. 40: 150 (1911). Type from S. Africa.
Ipomoea ukambensis Vatke [family CONVOLVULACEAE], in Linnaea 43: 510 (1882). Type from Kenya.
Ipomoea adumbrata Rendle & Britten [family CONVOLVULACEAE], in Journ. Bot. 32: 173 (1894).—Baker & Rendle in Dyer, F.T.A. 4: 145 (1905). Type from Angola.
Ipomoea oblongata Dammer [family CONVOLVULACEAE], in Engl., Pflanzenw. Ost.-Afr. C: 331 (1895) nom. illegit. Type from Tanzania.
Ipomoea greenstockii Rendle [family CONVOLVULACEAE], in Journ. Bot. 34: 38 (1896 et 39: 14 (1901).—Baker & Wright in Dyer, F. C. 4: 51 (1904). Type from S. Africa (Transvaal).
Ipomoea crassipes var. ukambensis Vatke Hall. f. [family CONVOLVULACEAE], in Bull. Herb. Boiss. 7: 46 (1899).—Baker & Rendle in F.T.A. 4, 2: 147 (1905). Type as for Ipomoea ukambensis.
Ipomoea sarmentacea Rendle [family CONVOLVULACEAE], in Journ. Bot. 39: 15 (1901).—Baker & Wright in Fl. Cap. 4: 57 (1904). Type from S. Africa (Transvaal).
Ipomoea bellecomans Rendle [family CONVOLVULACEAE], in Journ. Bot. 39: 15 (1901).—Baker & Wright in Fl. Cap. 4: 55 (1904). Type from S. Africa (Transvaal).
Ipomoea crassipes var. shirensis Baker [family CONVOLVULACEAE], in F.T.A. 4, 2: 147 (1905). Type: Malawi, Shire Highlands, Buchana 89 (K, holotype).