"Nuphar is a genus of aquatic plants in the family Nymphaeaceae, with a temperate to subarctic Northern Hemisphere distribution. Common names include water-lily (Eurasian species; shared ...
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with many other genera in the same family), pond-lily, alligator-bonnet or bonnet lily, and spatterdock (North American species)." - (en.wikipedia.org 19.08.2021)