Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
       Superorder Rutanae Takht. (1967) see Order Sapindales Juss. ex Bercht. & J.Presl (1820)
         Order Rutales Perleb (1826) see Order Sapindales Juss. ex Bercht. & J.Presl (1820)
           Suborder Rutineae see Order Sapindales Juss. ex Bercht. & J.Presl (1820)
             Family Simaroubaceae DC. (1811), nom. cons. - quassia family
               Subfamily Simarouboideae see Family Simaroubaceae DC. (1811), nom. cons.
                 01 Genus Eurycoma Jack (1822)
                 02 Genus Quassia L. (1762)
                 03 Genus Pierreodendron Engl. (1907)
                 04 Genus Iridosma Aubrév. & Pellegr.
                 05 Genus Simarouba Aubl. (1775), nom. cons.
                 06 Genus Simaba Aubl. (1775)
                 07 Genus Samadera Gaertn.
                 08 Genus Hannoa Planch. (1846)
                 09 Genus Castela Turpin (1806), nom. cons.
                 10 Genus Brucea J.F. Mill. (1779), nom. cons.
                 11 Genus Laumoniera H.P. Nooteboom (1987)
                 12 Genus Picrasma Blume (1825)
                 13 Genus Perriera Courchet (1905)
                 14 Genus Picrolemma Hook.f., in Bentham & Hook.f. (1862)
                 15 Genus Ailanthus Desf. (1788)
                 16 Genus Soulamea Lam. (1785)
                 17 Genus Gymnostemon Aubréville & Pellegrin (1937)