Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Magnoliopsida Brongn. (1843) Subclass Nymphaeidae J.W. Walker ex Takht. (1997) see Order Nymphaeales Salisb. ex Bercht. & J.Presl (1820) Superorder Nymphaeanae Thorne ex Reveal (1992) Order Hydropeltidales Spenn. (1834) see Order Nymphaeales Salisb. ex Bercht. & J.Presl (1820) Family Cabombaceae Rich. ex A.Rich. (1822), nom. cons. - water-shield family Genus Cabomba Aubl. (1775)