| Trixis nelsonii Greenm., 1905 |
| Trixis obvallata Hook. & Arn., 1838 |
| Trixis oligantha B.L. Rob. & Greenm., 1904 |
| Trixis parviflora C.E. Anderson, 1971 |
| Trixis patens (A. Gray) Sch. Bip., 1856 |
| Trixis peninsularis S.F. Blake, 1924 |
| Trixis pringlei B.L. Rob. & Greenm., 1904 |
| Trixis pringlei var. oligantha (B.L. Rob. & Greenm.) C.E. Anderson, 1971 |
| Trixis pringlei var. pringlei B.L. Rob. & Greenm., 1904 |
| Trixis pterocaulis B.L. Rob. & Greenm., 1904 |
| Trixis radialis (L.) Kuntze, 1891 |
| Trixis rosmarinifolia Nees, 1847 |
| Trixis rugulosa B.L. Rob. & Greenm., 1904 |
| Trixis seemannii (A. Gray) Sch. Bip., 1856 |
| Trixis silvatica B.L. Rob. & Greenm., 1904 |
| Trixis suffruticosa S. Watson, 1880 |
| Trixis turbinata (La Llave & Lex.) Sch. Bip., 1856 |
| Trixis wrightii B.L. Rob. & Greenm., 1904 |
| Troximon Gaertn., 1791 |
| Troximon heterophyllum (Nutt.) Greene, 1883 |