Flora van Nederland Haeckel (1866) - plants
   Division Spermatophyta Goebel (1882) see Phylum Spermatophyta Goebel (1882)
     Subdivision Angiospermae J. Lindley (1830) see Infraphylum Angiospermae auct.
       Class Dicotyledones see Class Magnoliopsida Brongn. (1843)
         Order Rhoeadales
           Family Papaveraceae Juss. (1789), nom. cons. - poppy family
             Genus Papaver L. (1753) - poppies
               Papaver rhoeas L. - corn poppy