| Tithonia angustifolia Hook. & Arn., 1841 |
| Tithonia auriculata (Brandegee) S.F. Blake, 1918 |
| Tithonia brachypappa B.L. Rob., 1892 |
| Tithonia calva Sch. Bip., 1856 |
| Tithonia calva var. auriculata (Brandegee) La Duke, 1982 |
| Tithonia calva var. calva Sch. Bip., 1856 |
| Tithonia calva var. lancifolia (B.L. Rob. & Greenm.) McVaugh, 1972 |
| Tithonia decurrens A. Gray, 1849 |
| Tithonia diversifolia (Hemsl.) A. Gray, 1883 |
| Tithonia fruticosa Canby & Rose, 1891 |
| Tithonia glaberrima Kuntze, 1891 |
| Tithonia helianthoides Weinm. ex Steud., 1841 |
| Tithonia koelzii McVaugh, 1972 |
| Tithonia longiradiata (Bertol.) S.F. Blake, 1926 |
| Tithonia macrophylla S. Watson, 1891 |
| Tithonia pachycephala DC., 1836 |
| Tithonia paneroi (B.L. Turner) E.E. Schill. & Panero, 2011 |
| Tithonia pedunculata Cronquist, 1965 |
| Tithonia rotundifolia (Mill.) S.F. Blake, 1917 |
| Tithonia scaberrima Benth., 1853 |