[Angiospermae] J. Lindley (1830) see Infraphylum Angiospermae auct.
   Dicotyledones see Class Magnoliopsida Brongn. (1843)
     Superorder Rosanae Takht. (1967)
       Order Fagales Engl. (1892)
         Family Betulaceae Gray (1822), nom. cons. - birch family