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 Magnoliopsida Brongn. (1843)
                 Subclass Hamamelididae Takht. (1967)
                   Superorder Myrothamnanae Takht. (1997)
                     20 Order Myrothamnales Nakai ex Reveal (1993) [monotypic] see Order Gunnerales Takht. ex Reveal (1992)
                     21 Order Gunnerales Takht. ex Reveal (1992) [monotypic]