Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
       Superorder Saxifraganae Reveal (1994)
         Order Saxifragales Bercht. & J.Presl (1820)
           Family Crassulaceae J.St.-Hil. (1805), nom. cons. - stonecrop family
             Subfamily Sedoideae
               Tribe Echeverieae
                 1 Genus Villadia Rose (1903)
                 2 Genus Lenophyllum J.N. Rose (1904)
                 3 Genus Echeveria DC. (1828)
                 4 Genus Graptopetalum J.N. Rose (1911)
                 5 Genus Dudleya N.L. Britton & J.N. Rose (1903)
                 6 Genus Pachyphytum Link et al., in Otto & Dietrich (1841)