Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Cornidae Frohne & U. Jensen ex Reveal (1994) see Subclass Asteridae Takht. (1967)
       Superorder Aralianae Takht. (1967) see Order Apiales Nakai (1930)
         Order Araliales Juss. ex Bercht. & J.Presl (1820) see Order Apiales Nakai (1930)
           Family Hydrocotylaceae Bercht. & J.Presl (1820), nom. cons. see Subfamily Hydrocotyloideae Burmeist. (1837)
             Tribe Hydrocotyleae Spreng. (1820) see Subfamily Hydrocotyloideae Burmeist. (1837)
               1 Genus Hydrocotyle L. (1753)
               2 Genus Centella L. (1763)
               3 Genus Actinotus Labill. (1805)
               4 Genus Xanthosia Rudge (1811)