| Tibouchina thulia Todzia, 1999 |
| Tibouchina tortuosa (Bonpl.) Almeda, 2005 |
| Tibouchina trianae Cogn., 1891 |
| Tibouchina urvilleana (DC.) Cogn., 1885 |
| Tibouchina xochiatencana de Santiago, 2012 |
| Tococa Aubl., 1775 |
| Tococa guianensis Aubl., 1775 |
| Topobea Aubl., 1775 |
| Topobea calycularis Naudin, 1852 |
| Topobea fragrans Naudin, 1852 |
| Topobea laevigata (D. Don) Naudin, 1852 |
| Topobea maurofernandeziana Cogn., 1891 |
| Topobea watsonii Cogn., 1891 |
| Triolena Naudin, 1850 |
| Triolena radicans Brandegee, 1913 |
| Triolena scorpioides Naudin, 1850 |