| Panicum adhaerens Forssk., 1775 |
| Panicum adpressum Willd., 1803 |
| Panicum adscendens Kunth, 1815 |
| Panicum adspersum Trin., 1826 |
| Panicum affine (Roem. & Schult.) Nees, 1829 |
| Panicum africanum (P. Beauv.) Poir., 1816 |
| Panicum agglutinans Kunth, 1833 |
| Panicum agrostideum Salzm. ex Steud., 1840 |
| Panicum agrostidiforme Lam., 1791 |
| Panicum alabamense Ashe, 1900 |
| Panicum alatum Zuloaga & Morrone, 1996 |
| Panicum alatum var. alatum Zuloaga & Morrone, 1996 |
| Panicum alatum var. longiflorum Zuloaga & Morrone, 1996 |
| Panicum alatum var. minus (Andersson) Zuloaga & Morrone, 1996 |
| Panicum albemarlense Ashe, 1900 |
| Panicum albomaculatum Scribn., 1900 |
| Panicum alcobense Swallen, 1950 |
| Panicum almadense Nees ex Trin., 1826 |
| Panicum alsinoides Griseb., 1864 |
| Panicum alsophilum Swallen, 1950 |