| Agave (Agave) hiemiflora Gentry, 1982 |
| Agave (Agave) hookeri Jacobi, 1866 |
| Agave (Agave) huachucensis Baker, 1888 |
| Agave (Agave) inaequidens K. Koch, 1860 |
| Agave (Agave) inaequidens subsp. barrancensis Gentry, 1982 |
| Agave (Agave) inaequidens subsp. inaequidens K. Koch, 1860 |
| Agave (Agave) ingens A. Berger, 1915 |
| Agave (Agave) integrifolia Baker, 1888 |
| Agave (Agave) ixtli Karw. ex Salm-Dyck, 1834 |
| Agave (Agave) ixtlioides Hook. f., 1871 |
| Agave (Agave) jacobiana Salm-Dyck, 1859 |
| Agave (Agave) jacquiniana Tausch, 1859 |
| Agave (Agave) jaiboli Gentry, 1972 |
| Agave (Agave) karwinskii Zucc., 1832 |
| Agave (Agave) katharinae A. Berger, 1915 |
| Agave (Agave) kewensis Jacobi, 1866 |
| Agave (Agave) kirchneriana A. Berger, 1915 |
| Agave (Agave) latifolia hort. ex Salm-Dyck, 1859 |
| Agave (Agave) latissima Jacobi, 1864 |
| Agave (Agave) laxa Salm-Dyck, 1834 |