Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Magnoliopsida Brongn. (1843) Subclass Hamamelididae Takht. (1967) Superorder Buxanae Takht. (1997), nom. inval. see Superorder Buxanae Takht. ex Reveal & Doweld (1999) Order Simmondsiales Reveal (1992) see Order Caryophyllales Juss. ex Bercht. & J.Presl (1820) Family Simmondsiaceae Tiegh. (1900) Genus Simmondsia Nutt. (1844)