Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Caryophyllidae Takht. (1967) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
       Superorder Caryophyllanae Takht. (1967)
         Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
           Suborder Chenopodiineae Engl. (1898) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
             Family Amaranthaceae Juss. (1789), nom. cons. - amaranth family
               Subfamily Gomphrenoideae
                 1 Genus Tidestromia Standl. (1916)
                 2 Genus Froelichia Moench (1794)
                 3 Genus Pfaffia Mart. (1826)
                 4 Genus Alternanthera Forsskål (1775)
                 5 Genus Gomphrena L. (1753)
                 6 Genus Iresine P.Browne (1756), nom. cons.