Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
       Superorder Fabanae R.Dahlgren ex Reveal (1993) see Order Fabales Bromhead (1838)
         Order Fabales Bromhead (1838)
           Family Fabaceae Lindl. (1836), nom. cons. - bean family see Family Leguminosae Juss. (1789), nom. cons.
             Subfamily Faboideae see Subfamily Papilionoideae (Giseke, 1792) DC. (1825)
               Tribe Thermopsideae
                 1 Genus Anagyris L. (1753)
                 2 Genus Piptanthus Sweet (1828)
                 3 Genus Ammopiptanthus S.H. Cheng (1959)
                 4 Genus Thermopsis R.Br. (1811)
                 5 Genus Baptisia Ventenat (1808)
                 6 Genus Pickeringia Nutt. (1840), nom. cons.