Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
       Subkingdom Pteridobiotina Britton & A. Br. (1896)
         Superphylum Cycadophytanae Doweld (2001)
           Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
             Subphylum Magnoliophytina Reveal (1996)
               Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
                 Subclass Liliidae J.H.Schaffn. (1911) see Order Liliales Perleb (1826)
                   Superorder Melanthianae Doweld (2001)
                     Order Melanthiales R.Dahlgren ex Reveal (1992) see Order Liliales Perleb (1826)
                       Family Melanthiaceae Batsch ex Borkh. (1797), nom. cons.
                         Genus Melanthium L. (1753)