| Crassuloideae Burnett, 1835 |
| Cremnophila Rose, 1905 |
| Cremnophila linguifolia (Lem.) Moran, 1975 |
| Cremnophila nutans (Rose) Rose, 1905 |
| Cremnophila tlahuicana J. Reyes, Avila & Brachet, 2015 |
| Diamorpha Nutt., 1818 |
| Dudleya Britton & Rose, 1903 |
| Dudleya abramsii Rose, 1903 |
| Dudleya acuminata Rose, 1903 |
| Dudleya albiflora Rose, 1903 |
| Dudleya anomala (Davidson) Moran, 1943 |
| Dudleya anthonyi Rose, 1903 |
| Dudleya arizonica Rose, 1923 |
| Dudleya attenuata (S. Watson) Moran, 1977 |
| Dudleya attenuata subsp. orcuttii (Rose) Moran, 1977 |
| Dudleya blochmaniae (Eastw.) Moran, 1977 |
| Dudleya brevipes Rose, 1903 |
| Dudleya brittonii D.A. Johans., 1933 |
| Dudleya campanulata Moran, 1978 |
| Dudleya candida Britton, 1903 |