| Andropogon paniculatus var. paniculatus Lam., 1778 |
| Andropogon panormitanus Parl., 1848 |
| Andropogon parviflorus Roxb., 1820 |
| Andropogon parvifolius C.L. Hitchc., 1936 |
| Andropogon paucipilus Nash, 1901 |
| Andropogon perforatus Trin. ex E. Fourn., 1886 |
| Andropogon perfossus Nees & Meyen ex Steud., 1840 |
| Andropogon pertusus (L.) Willd., 1806 |
| Andropogon pertusus var. panormitanus (Parl.) Hack., 1889 |
| Andropogon pilosovaginatus De Wild., 1919 |
| Andropogon pilosus Dufour ex Roem. & Schult., 1817 |
| Andropogon piptatherus Hack., 1883 |
| Andropogon piptatherus var. palmeri Hack., 1889 |
| Andropogon plumiger Ekman, 1911 |
| Andropogon plumosus Humb. & Bonpl. ex Willd., 1806 |
| Andropogon podotrichus Hochst., 1842 |
| Andropogon polydactylon L., 1763 |
| Andropogon praematurus Fernald, 1940 |
| Andropogon praematurus f. hirtivaginatus Fernald, 1942 |
| Andropogon praematurus f. praematurus Fernald, 1940 |