| Triodia flava var. aristata (Scribn. & C.R. Ball) Fernald & Griscom, 1935 |
| Triodia glumosa (Michx.) P. Beauv., 1812 |
| Triodia grandiflora Vasey, 1890 |
| Triodia mutica (Torr.) Scribn., 1883 |
| Triodia nealleyi Vasey, 1891 |
| Triodia novaeboracensis Desv., 1831 |
| Triodia pilosa (Buckley) Bush, 1902 |
| Triodia pulchella Kunth, 1816 |
| Triodia purpurea (Walter) Smyth, 1913 |
| Triodia schaffneri S. Watson, 1883 |
| Triodia texana S. Watson, 1883 |
| Triodia triticoides C.A. Gardner, 1952 |
| Triphlebia Stapf, 1898 |
| Triplanthera Endl., 1836 |
| Triplasiella P.M. Peterson & Romasch., 2016 |
| Triplasiella eragrostoides (Vasey & Scribn.) P.M. Peterson & Romasch., 2016 |
| Triplasis P. Beauv., 1812 |
| Triplasis (P. Beauv.) Hack., 1887 |
| Triplasis caribensis (R.W. Pohl) Beetle, 1983 |
| Triplasis floridana Gand., 1919 |