Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Ranunculidae Takht. ex Reveal (1992) see Order Ranunculales Juss. ex Bercht. & J.Presl (1820)
       Superorder Ranunculanae Takht. ex Reveal (1992)
         Order Papaverales Dumort. (1829) see Order Ranunculales Juss. ex Bercht. & J.Presl (1820)
           Family Papaveraceae Juss. (1789), nom. cons. - poppy family
             Subfamily Eschscholzioideae see Tribe Eschscholzieae Baill. (1871)
               1 Genus Dendromecon Bentham (1835)
               2 Genus Hunnemannia Sweet (1828)
               3 Genus Eschscholzia Cham. (1820)