| Aira danthonioides Trin., 1830 |
| Aira elegantissima Schur, 1853 |
| Aira elongata Hook., 1840 |
| Aira flexuosa L., 1753 |
| Aira flexuosa var. montana Brongn., 1829 |
| Aira gigantea Steud., 1854 |
| Aira gracilis (Pers.) Trin., 1820 |
| Aira holcus-lanata Vill., 1787 |
| Aira holcus-lanatus (L.) Vill., 1787 |
| Aira incompleta Bosc ex Steud., 1840 |
| Aira koelerioides Peyr., 1859 |
| Aira latigluma Steud., 1854 |
| Aira laxa Rich., 1792 |
| Aira macrantha Ledeb., 1815 |
| Aira major Syme, 1873 |
| Aira major subsp. caespitosa (L.) Syme, 1873 |
| Aira mexicana Trin. ex E. Fourn., 1886 |
| Aira montana L., 1753 |
| Aira obtusa Raf., 1819 |
| Aira obtusata Michx., 1803 |