About 50 species, incluing: Nymphaea alba - European White Water-lily Nymphaea amazonum Nymphaea ampla Nymphaea blanda Nymphaea caerulea - Egyptian Blue Water-lily Nymphaea calliantha Nymphaea candida Nymphaea capensis - Cape Blue Water-lily Nymphaea citrina Nymphaea colorata Nymphaea elegans Nymphaea fennica Nymphaea flavovirens Nymphaea gardneriana Nymphaea gigantea - Australian Water-lily Nymphaea heudelotii Nymphaea jamesoniana Nymphaea lotus - Egyptian White Water-lily Nymphaeae lutea - Yellow water-lily or Brandy bottle Nymphaea macrosperma - Native to Australia's Top End Nymphaea mexicana - Yellow Water-lily Nymphaea micrantha Nymphaea odorata - Fragrant Water-lily Nymphaea pubescens Nymphaea rubra - India Red Water-lily Nymphaea rudgeana Nymphaea stellata - Blue Water-lily (National flower of Sri Lanka) Nymphaea stuhlmannii Nymphaea sulfurea Nymphaea tetragona - Pygmy Water-lily