| Trichachne Nees, 1829 |
| Trichachne affinis Swallen, 1963 |
| Trichachne californica (Benth.) Chase, 1933 |
| Trichachne hitchcockii (Chase) Chase, 1933 |
| Trichachne insularis (L.) Nees, 1829 |
| Trichachne nutans (L.) B.R. Baum, 1967 |
| Trichachne patens Swallen, 1932 |
| Trichachne penicilligera (Speg.) Parodi, 1939 |
| Trichachne saccharatum (Buckley) Nash, 1903 |
| Trichachne sacchariflora Nees, 1829 |
| Trichachne sellowii Müll. Hal., 1861 |
| Trichachne sericea Swallen, 1949 |
| Trichanthecium Zuloaga & Morrone, 2011 |
| Trichanthecium cyanescens (Nees ex Trin.) Zuloaga & Morrone, 2011 |
| Trichanthecium parvifolium (Lam.) Zuloaga & Morrone, 2011 |
| Trichloris E. Fourn. ex Benth., 1881 |
| Trichloris blanchardiana E. Fourn. ex Scribn., 1882 |
| Trichloris crinita (Lag.) Parodi, 1947 |
| Trichloris crinita var. triflora Parodi, 1947 |
| Trichloris crinita var. typica Parodi, 1947 |