Genera 6 (including Barclaya), species ca. 50 (2 genera, 17 species in the flora).
Nymphaeaceae are insect-pollinated, often by beetles.
Formerly Nymphaeaceae often have been treated to include Cabombaceae and Nelumbonaceae, but these are now generally segregated.
Schneider, E. L. 1979. Pollination biology of the Nymphaeaceae. In: D. M. Caron, ed. 1979. Increasing Production of Agricultural Crops through Increased Insect Pollination: Proceedings of the IVth International Symposium on Pollination. College Park, Md. Pp. 419-429. [Maryland Agric. Exp. Sta. Special Misc. Publ. 1.]
|1||Perianth nearly globose at anthesis; stigmatic disk with margin entire to crenate or dentate, appendages absent; leaf venation essentially pinnate.||Nuphar|
|1||Perianth spreading at anthesis; stigmatic disk with prominent, distinct, upwardly incurved appendages around margin; leaf venation essentially palmate.||Nymphaea|