[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       Spermatophyta Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. - seed plants see Clade Spermatophyta Britton & Brown 1896 [Cantino, Doyle & Donoghue 2020]
         Class Magnoliopsida Brongn. (1843)
           "Eudicots" see Clade Eudicotyledoneae Donoghue, Doyle & Cantino 2007 [Donoghue, Doyle & Cantino 2020]
             "Core Eudicots" see Clade Gunneridae Soltis, Soltis & Judd 2007 [Soltis, Soltis & Judd 2020]
               Order Saxifragales Bercht. & J.Presl (1820)
                 Family Crassulaceae J.St.-Hil. (1805), nom. cons. - stonecrop family
                   .1 Subfamily Crassuloideae Burnett
                   .2 Subfamily Kalanchoideae A.Berger
                   .3 Subfamily Sempervivoideae Arn. see Subfamily Sedoideae
                   01 Genus Adromischus Lemaire (1852)
                   02 Genus Aeonium Webb & Berthelot (1840)
                   03 Genus Crassula L. (1753)
                   04 Genus Dudleya N.L. Britton & J.N. Rose (1903)
                   05 Genus Echeveria DC. (1828)
                   06 Genus Kalanchoe Adans. (1763)
                   07 Genus Sedum L. (1753)
                   08 Genus Sempervivum L. (1753)
                   09 Genus Umbilicus DC. (1801)
                   10 Genus Villadia Rose (1903)