Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Asteridae Takht. (1967) see Superorder Asteranae Takht. (1967)
       Superorder Asteranae Takht. (1967)
         Order Asterales Link (1829)
           Family Asteraceae Bercht. & J.Presl (1820), nom. cons. - sunflower family see Family Compositae Giseke (1792), nom. cons.
             Subfamily Asteroideae (Cass.) Lindl.
               Tribe Eupatorieae Cass. (1819)
                 Genus Ageratum L. (1753)