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 Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
               Order Celastrales Link (1829)
                 Family Celastraceae R.Br. (1814), nom. cons. - bittersweet family
                   1 Genus Euonymus L. (1753)
                   2 Genus Canotia J. Torrey (1857)
                   3 Genus Goupia Aubl. (1775)
                   4 Genus Lophoxys
                   5 Genus Siphonodon Griffith (1844)