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 Juncidae Doweld (2001)
                   Superorder Juncanae Takht. (1967) see Order Poales Burnett (1835)
                     Order Xyridales Lindl. (1846) [monotypic] see Order Poales Burnett (1835)
                       1 Family Xyridaceae C.Agardh (1823), nom. cons. - yellow-eyed grass family