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 Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
                   Superorder Urticanae Takht. ex Reveal (1992) see Order Rosales Bercht. & J.Presl (1820)
                     Order Ulmales Link (1829) [monotypic]
                       1 Family Ulmaceae Mirb. (1815), nom. cons. - elm family