| Ipomoea ternifolia var. ternifolia Cav., 1799 |
| Ipomoea ternifolia var. valida (House) J.A. McDonald, 1995 |
| Ipomoea ternifolia var. villosa (Choisy) Staples & Govaerts, 2015 |
| Ipomoea thurberi A. Gray, 1878 |
| Ipomoea tiliacea (Willd.) Choisy, 1845 |
| Ipomoea trichocarpa Elliott, 1823 |
| Ipomoea tricolor Cav., 1795 |
| Ipomoea trifida (Kunth) G. Don, 1838 |
| Ipomoea triloba L., 1753 |
| Ipomoea tuberosa L., 1753 |
| Ipomoea turbinata Lag., 1816 |
| Ipomoea tuxtlensis House, 1908 |
| Ipomoea tyrianthina Lindl., 1838 |
| Ipomoea umbraticola House, 1908 |
| Ipomoea urbinei House, 1907 |
| Ipomoea variabilis (Schltdl. & Cham.) Choisy, 1845 |
| Ipomoea venusta (M. Martens & Galeotti) Hemsl., 1882 |
| Ipomoea villifera House, 1909 |
| Ipomoea violacea L., 1753 |
| Ipomoea vulsa House, 1907 |