angiosperms - flowering plants see Subclass Magnoliidae Novák ex Takht. (1967)
   eudicots see Clade Eudicotyledoneae Donoghue, Doyle & Cantino 2007 [Donoghue, Doyle & Cantino 2020]
     core eudicots see Clade Gunneridae Soltis, Soltis & Judd 2007 [Soltis, Soltis & Judd 2020]
       rosids see Clade Rosidae Takhtajan 1967 [Judd, Cantino, Soltis & Soltis 2020]
         eurosids I see [unranked] fabids
           Order Fagales Engl. (1892)
             1 Family Betulaceae Gray (1822), nom. cons. - birch family
             2 Family Casuarinaceae R.Br. (1814), nom. cons. - she-oak family
             3 Family Fagaceae Dumort. (1829), nom. cons. - beech family
             4 Family Juglandaceae DC. ex Perleb (1818), nom. cons. - walnut family
             5 Family Myricaceae Rich. ex Kunth (1817), nom. cons. - bayberry family
             6 Family Nothofagaceae Kuprian. (1962)
             7 Family Ticodendraceae Gómez-Laur. & L.D.Gómez (1991)