Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Dilleniidae Takht. ex Reveal & Tahkt. (1993) see Order Dilleniales DC. ex Bercht. & J.Presl (1820)
       Superorder Violanae R.Dahlgren ex Reveal (1992) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820)
         Order Capparales Juss. ex Bercht. & J.Presl (1820) see Order Brassicales Bromhead (1838)
           Suborder Capparineae see Order Brassicales Bromhead (1838)
             Family Capparaceae Juss. (1789), nom. cons. - caper family
               Subfamily Capparoideae Pax see Family Capparaceae Juss. (1789), nom. cons.
                 Tribe Cappareae DC. (1824)
                   Genus Ritchiea R.Br. ex G.Don (1831)