| Stenophyllus vestitus (Kunth) Britton, 1916 |
| Thryocephalon J.R. Forst. & G. Forst., 1775 |
| Thryocephalon pumilum (Michx.) Nieuwl., 1915 |
| Torulinium Desv. ex Ham., 1825 |
| Torulinium eggersii (Boeckeler) C.B. Clarke, 1900 |
| Torulinium ferax (Rich.) Urb., 1900 |
| Torulinium macrocephalum (Liebm.) C.B. Clarke, 1908 |
| Torulinium macrocephalum var. eggersii (Boeckeler) C.D. Adams, 1991 |
| Torulinium macrocephalum var. macrocephalum (Liebm.) C.B. Clarke, 1908 |
| Torulinium odoratum (L.) S.S. Hooper, 1972 |
| Trichelostylis P. Beauv. ex T. Lestib., 1819 |
| Trichelostylis complanata (Retz.) Nees, 1834 |
| Trichelostylis geminata Lindl. & Nees, 1842 |
| Trichelostylis mucronulatus (Michx.) Torr., 1836 |
| Trichelostylis rudgeana Nees, 1842 |
| Trichophoreae Lév.-Bourret & J.R. Starr, 2019 |
| Trichophorum Pers., 1805 |
| Trichophorum analecta (Beetle) Lév.-Bourret & J.R. Starr, 2019 |
| Trichophorum coahuilense (Svenson) Lév.-Bourret & J.R. Starr, 2019 |
| Trichophorum cyperinum (L.) Pers., 1805 |