| Panicum tectum Willd. ex Spreng., 1825 |
| Panicum tejucense Nees, 1829 |
| Panicum tenax Rich., 1792 |
| Panicum tenerum Beyr. ex Trin., 1834 |
| Panicum tennesseense Ashe, 1898 |
| Panicum tenuiculmum G. Mey., 1818 |
| Panicum tenuiflorum Schrank, 1824 |
| Panicum tenuissimum Mart. ex Schrank, 1822 |
| Panicum ternatum (Hochst. ex A. Rich.) Hochst. ex A. Rich., 1851 |
| Panicum texanum Buckley, 1866 |
| Panicum thermale Bol., 1862 |
| Panicum thurowii Scribn. & J.G. Sm., 1899 |
| Panicum tonsum (Nees) Steud., 1854 |
| Panicum trachyspermum Nees, 1829 |
| Panicum transiens Swallen, 1931 |
| Panicum tremulosum Mez, 1917 |
| Panicum tremulum Spreng., 1821 |
| Panicum trichanthum Nees, 1829 |
| Panicum trichanthum var. modestum Döll, 1877 |
| Panicum trichidiachne Döll, 1877 |