| Evolvulus nuttallianus Roem. & Schult., 1820 |
| Evolvulus ovatus Fernald, 1897 |
| Evolvulus palmeri House, 1906 |
| Evolvulus pilosissimus M. Martens & Galeotti, 1845 |
| Evolvulus pohlii Meisn., 1869 |
| Evolvulus prostratus B.L. Rob., 1894 |
| Evolvulus purpusii Ooststr., 1934 |
| Evolvulus ramulosus M.E. Jones, 1929 |
| Evolvulus rotundifolius (S. Watson) Hallier f., 1893 |
| Evolvulus sericeus Sw., 1788 |
| Evolvulus sericeus var. cymosus Harms, 2023 |
| Evolvulus tenuis Mart. ex Choisy, 1837 |
| Evolvulus tenuis subsp. yucatanensis Ooststr., 1934 |
| Exogonium Choisy, 1834 |
| Exogonium argentifolium (A. Rich. ex Sagra) House, 1908 |
| Exogonium bracteatum (Cav.) Choisy ex G. Don, 1834 |
| Exogonium dumosum Benth., 1840 |
| Exogonium luteum House, 1908 |
| Exogonium olivae Bárcena, 1844 |
| Exogonium purga Wender., 1840 |