Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Dilleniidae Takht. ex Reveal & Tahkt. (1993) see Order Dilleniales DC. ex Bercht. & J.Presl (1820)
       Superorder Violanae R.Dahlgren ex Reveal (1992) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820)
         Order Cucurbitales Juss. ex Bercht. & J.Presl (1820)
           Family Cucurbitaceae Juss. (1789), nom. cons. - cucumber family
             Subfamily Cucurbitoideae
               Tribe Cucurbiteae Dumort. (1827)
                 Genus Peponopsis Naudin (1859)