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 Euphorbianae Takht. ex Reveal (1992) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820)
         Order Euphorbiales Lindl. (1833) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820)
           Family Euphorbiaceae Juss. (1789), nom. cons. - spurge family
             Subfamily Oldfieldioideae see Family Picrodendraceae Small (1917), nom. cons.
               Tribe Caletieae Müll.Arg. (1864)
                 1 Genus Hyaenanche A.B. Lambert (1797)
                 2 Genus Austrobuxus Miquel (1861)
                 3 Genus Petalostigma F.Muell. (1857)
                 4 Genus Scagea G. McPherson (1986)
                 5 Genus Pseudanthus Sieber ex A. Sprengel, in Spreng. (1827)