Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
       Subkingdom Pteridobiotina Britton & A. Br. (1896)
         Superphylum Cycadophytanae Doweld (2001)
           Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
             Subphylum Magnoliophytina Reveal (1996)
               Class Magnoliopsida Brongn. (1843)
                 Subclass Rutidae Doweld (2001)
                   Superorder Sapindanae Doweld (2001) [monotypic]
                     Order Sapindales Juss. ex Bercht. & J.Presl (1820)
                       Family Hippocastanaceae A.Rich. (1823), nom. cons. - horse-chestnut family see Subfamily Hippocastanoideae Burnett