| Dandya hannibalii L.W. Lenz, 1971 |
| Dandya purpusii (Brandegee) H.E. Moore, 1953 |
| Dandya thadhowardii L.W. Lenz, 1971 |
| Dasylirion Zucc., 1838 |
| Dasylirion acrotrichum (Schiede) Zucc., 1840 |
| Dasylirion berlandieri S. Watson, 1879 |
| Dasylirion bigelovii Torr., 1857 |
| Dasylirion caespitosum Scheidw., 1861 |
| Dasylirion cedrosanum Trel., 1911 |
| Dasylirion durangense Trel., 1911 |
| Dasylirion erumpens Torr., 1859 |
| Dasylirion gentryi Bogler, 1998 |
| Dasylirion glaucophyllum Hook., 1858 |
| Dasylirion glaucum Carrière, 1872 |
| Dasylirion gracile (Lem.) J.F. Macbr., 1918 |
| Dasylirion graminifolium (Zucc.) Zucc., 1838 |
| Dasylirion hartwegianum Kunth, 1845 |
| Dasylirion heteracanthum I.M. Johnst., 1943 |
| Dasylirion hookeri Lem., 1859 |
| Dasylirion humboldtii Kunth, 1850 |