Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Ranunculidae Takht. ex Reveal (1992) see Order Ranunculales Juss. ex Bercht. & J.Presl (1820)
       Superorder Ranunculanae Takht. ex Reveal (1992)
         Order Paeoniales Heintze (1927) see Order Saxifragales Bercht. & J.Presl (1820)
           Family Paeoniaceae Raf. (1815), nom. cons.
             Genus Paeonia L. (1753) - peonies
               Paeonia japonica (Makino) Miyabe & Takeda