| Andropogon virginicus var. tenuispatheus (Nash) Fernald & Griscom, 1935 |
| Andropogon virginicus var. tetrastachyus (Elliott) Hack., 1889 |
| Andropogon virginicus var. vaginatus (Elliott) Alph. Wood, 1861 |
| Andropogon virginicus var. viridis Hack., 1889 |
| Andropogon virginicus var. viridis subvar. ditior Hack., 1889 |
| Andropogon vulgaris (Pers.) Raspail, 1825 |
| Andropogon wrightii Hack., 1885 |
| Andropogon xanthoblepharis Trin., 1832 |
| Andropogon yinduensis Vanderyst, 1918 |
| Andropogon yucatanus Swallen, 1934 |
| Andropogon zizanioides (L.) Urb., 1903 |
| Andropogoneae Dumort., 1824 |
| Andropogoninae J. Presl, 1830 |
| Anelytrum Hack., 1910 |
| Anelytrum avenaceum Hack., 1910 |
| Aneurolepidium Nevski, 1934 |
| Angustifolia Hitchc. & Chase, 1910 |
| Anisachne Keng, 1958 |
| Anisantha K. Koch, 1848 |
| Anisantha diandra (Roth) Tutin, 1962 |