Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Caryophyllidae Takht. (1967) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
       Superorder Caryophyllanae Takht. (1967)
         Order Caryophyllales Juss. ex Bercht. & J.Presl (1820)
           Suborder Phytolacineae see Suborder Phytolaccineae
             Family Nyctaginaceae Juss. (1789), nom. cons. - four o'clock family
               1 Tribe Boldoeae Heimerl (1889)
               2 Tribe Leucastereae Benth. & Hook.f. (1880)
               3 Tribe Nyctagineae Horan. (1847)
               4 Tribe Abronieae S.Watson (1880)
               5 Tribe Bougainvilleeae Choisy (1849)
               6 Tribe Pisonieae