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 Saxifraganae Reveal (1994)
         Order Saxifragales Bercht. & J.Presl (1820)
           Family Saxifragaceae Juss. (1789), nom. cons. - saxifrage family
             01 Genus Astilbe F. Hamilton ex D.Don (1825)
             02 Genus Rodgersia A.Gray (1858)
             03 Genus Astilboides (Hemsl.) Engl., in Engl. & Prantl (1930)
             04 Genus Darmera A. Voss (1899)
             05 Genus Mukdenia Koidzumi (1935)
             06 Genus Bergenia Moench (1794), nom. cons.
             07 Genus Oresitrophe Bunge (1835)
             08 Genus Jepsonia J.K. Small (1896)
             09 Genus Peltoboykinia (Engl.) Hara (1937)
             10 Genus Boykinia Nutt. (1834), nom. cons.
             11 Genus Sullivantia Torrey & A.Gray (1842)
             12 Genus Bolandra A.Gray (1868)
             13 Genus Suksdorfia A.Gray (1880), nom. cons.
             14 Genus Leptarrhena R.Br. (1823)
             15 Genus Tanakaea Franchet & Savatier (1878)
             16 Genus Saxifraga L. (1753)
             17 Genus Saxifragella Engl., in Engl. & Prantl (1891) see Genus Saxifraga L. (1753)
             18 Genus Saxifragodes D.M.Moore (1969)
             19 Genus Saxifragopsis Small (1896)
             20 Genus Tiarella L. (1753)
             21 Genus Heuchera L. (1753) - coral bells
             22 Genus Tolmiea Torrey & A.Gray (1840), nom. cons.
             23 Genus Mitella L. (1753)
             24 Genus Tellima R.Br., in Franklin (1823)
             25 Genus Conimitella Rydberg (1905)
             26 Genus Elmera Rydberg (1905)
             27 Genus Bensoniella C.V. Morton (1965)
             28 Genus Lithophragma (Nutt.) J. Torrey & A.Gray (1840), nom. cons.
             29 Genus Chrysosplenium L. (1753)