| Smilacina thyrsoidea (Baker) Hemsl., 1884 |
| Sowerbaea Sm., 1798 |
| Sowerbaea americana Spreng. ex Kunth, 1843 |
| Taetsia Medik., 1786 |
| Taetsia fruticosa (L.) Merr., 1917 |
| Tovaria Neck. ex Baker, 1875 |
| Tovaria flexuosa (Bertol.) Baker, 1875 |
| Tovaria laxiflora Baker, 1875 |
| Tovaria nervulosa Baker, 1875 |
| Tovaria salvinii Baker, 1875 |
| Tovaria scilloides (M. Martens & Galeotti) Baker, 1875 |
| Tovaria sessilifolia Nutt. ex Baker, 1875 |
| Tovaria stellata (L.) Neck. ex Baker, 1875 |
| Tovaria thyrsoidea Baker, 1875 |
| Triteleia Douglas ex Lindl., 1830 |
| Triteleia aurea Lindl., 1841 |
| Triteleia berteroi Kunth, 1843 |
| Triteleia guadalupensis L.W. Lenz, 1970 |
| Triteleia palmeri (S. Watson) Greene, 1889 |
| Triteleiopsis Hoover, 1941 |