| Aristida antillarum Poir., 1810 |
| Aristida appressa Vasey, 1893 |
| Aristida appressa var. brevior Vasey, 1893 |
| Aristida arizonica Vasey, 1886 |
| Aristida barbata E. Fourn., 1885 |
| Aristida berlandieri (Trin. & Rupr.) Hitchc., 1913 |
| Aristida bromoides Kunth, 1815 |
| Aristida brownii Warnock, 1982 |
| Aristida californica Thurb., 1880 |
| Aristida californica var. californica Thurb., 1880 |
| Aristida californica var. fugitiva Vasey, 1892 |
| Aristida californica var. glabrata Vasey, 1891 |
| Aristida californica var. major Vasey, 1889 |
| Aristida canariensis Willd., 1809 |
| Aristida capillacea Lam., 1791 |
| Aristida coarctata Kunth, 1815 |
| Aristida curtiseta Buckley, 1862 |
| Aristida curvifolia E. Fourn., 1886 |
| Aristida debilis Mez, 1921 |
| Aristida dispersa Trin. & Rupr., 1842 |