Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
Count: [f] 2c;232o;592f;6085g;41s; †1g
   Class Magnoliopsida Brongn. (1843)
  Count: -
     Subclass Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
    Count: [f] 45o;130f;1338g; †1g
       Superorder Saxifraganae Reveal (1994)
      Count: [f] 8o;19f;126g
         Order Saxifragales Bercht. & J.Presl (1820)
        Count: [f] 9f;67g
           Family Pterostemonaceae Small (1905), nom. cons. see Family Iteaceae J.Agardh (1858), nom. cons.
          Count: [g] 1g
             1 Genus Pterostemon Schauer (1847)
            Count: -