Nymphaeaceae (pronounced /ËŒnɪmfiËÂˈeɪsiËÂÊâ€iËÂ/) is a name for a family of flowering plants. Members of this family are commonly called water lilies and live in freshwater areas in temperate and tropical climates around the world. The family contains 8 genera. There are about 70 species of water lilies around the world. The genus Nymphaea contains about 35 species across the Northern Hemisphere. The genus Victoria contains two species of giant water lilies and can be found in