Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Lamiidae Takht. ex Reveal (1993) see [unranked] lamiids
       Superorder Gentiananae Thorne ex Reveal (1992) see Order Gentianales Juss. ex Bercht. & J.Presl (1820)
         Order Gentianales Juss. ex Bercht. & J.Presl (1820)
           Family Strychnaceae DC. ex Perleb (1818) see Tribe Strychneae
             1 Genus Strychnos L. (1753)
             2 Genus Neuburgia Blume (1850)
             3 Genus Gardneria N. Wall., in Roxburgh (1820)