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
               Tribe Pisonieae
                 1 Genus Pisonia L. (1753)
                 2 Genus Guapira Aubl. (1775)
                 3 Genus Neea Ruiz & Pav. (1794)
                 4 Genus Neeopsis Lundell
                 5 Genus Cephalotomandra H. Karsten & Triana, in Triana (1854)
                 6 Genus Grajalesia F. Miranda (1951)