Domain Eucaryota
   Subdomain Chlorota Doweld (2001)
     Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
       Subkingdom Pteridobiotina Britton & A. Br. (1896)
         Superphylum Cycadophytanae Doweld (2001)
           Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
             Subphylum Magnoliophytina Reveal (1996)
               Class Magnoliopsida Brongn. (1843)
                 Subclass Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
                   Superorder Juglandanae Takht. ex Reveal (1992) see Order Fagales Engl. (1892)
                     Order Juglandales Dumort. (1829) see Order Fagales Engl. (1892)
                       1 Family Engelhardtiaceae Reveal & Doweld (1999) see Family Juglandaceae DC. ex Perleb (1818), nom. cons.
                       2 Family Platycaryaceae Nakai ex Doweld (2000)
                       3 Family Juglandaceae DC. ex Perleb (1818), nom. cons. - walnut family