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 Asteridae Takht. (1967) see Superorder Asteranae Takht. (1967)
               Order Gentianales Juss. ex Bercht. & J.Presl (1820)
                 1 Family Loganiaceae R.Br. ex Mart. (1827), nom. cons. - butterfly-bush family
                 2 Family Retziaceae Bartl. (1830) see Family Stilbaceae Kunth (1831), nom. cons.
                 3 Family Gentianaceae Juss. (1789), nom. cons. - gentian family
                 4 Family Saccifoliaceae Maguire & Pires (1978) - Saccifolium family see Tribe Saccifolieae (Maguire & Pires) L. Struwe et al., in L. Struwe & V.A.Albert (2002)
                 5 Family Apocynaceae Juss. (1789), nom. cons. - dogbane family
                 6 Family Asclepiadaceae Borkh. (1797), nom. cons. see Subfamily Asclepiadoideae Burnett