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 Caryophyllidae Takht. (1967) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
                   Superorder Caryophyllanae Takht. (1967)
                     Order Nyctaginales Juss. ex Bercht. & J.Presl (1820) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
                       Suborder Aizoineae Doweld (2001)
                         1 Family Aizoaceae Martinov (1820), nom. cons. - fig-marigold family
                         2 Family Sesuviaceae Horan. (1834) see Subfamily Sesuvioideae
                         3 Family Tetragoniaceae Lindl. (1836), nom. cons. see Subfamily Aizooideae Spreng. ex Arn.