Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Hamamelididae Takht. (1967)
       Superorder Juglandanae Takht. ex Reveal (1992) see Order Fagales Engl. (1892)
         Order Juglandales Dumort. (1829) see Order Fagales Engl. (1892)
           Family Juglandaceae DC. ex Perleb (1818), nom. cons. - walnut family
             Subfamily Juglandoideae Eaton
               Tribe Juglandeae Rchb. (1832)
                 Genus Pterocarya Kunth (1824)