| Andropogon nutans var. submuticus (Hack.) Hack., 1889 |
| Andropogon obtusifolius Poir., 1810 |
| Andropogon obtusus Nees, 1838 |
| Andropogon oligostachyus Chapm., 1860 |
| Andropogon ophiuroides (Munro) F. Muell., 1873 |
| Andropogon palmeri (Hack.) Gould, 1957 |
| Andropogon paniculatus Lam., 1778 |
| Andropogon paniculatus var. elongatus (Hack.) Hack., 1906 |
| 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 |