living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Embryobionta Cronquist, Takht. & W.Zimm.
         Division Magnoliophyta Cronquist, Takht. & Zimmerm. (1966) see Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996)
           Class Magnoliopsida Brongn. (1843)
             Subclass Caryophyllidae Takht. (1967) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
               Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
                 Family Cactaceae Juss. (1789), nom. cons. - cactus family
                   1 Genus Schlumbergera Lemaire (1858)
                   2 Genus Mammillaria Haw. (1812), nom. cons.
                   3 Genus Opuntia Mill. (1754)
                   4 Genus Nopalea Salm-Dyck