Nymphaea tetragona
GeorgiLEAST CONCERNPublished in Georgi. (1775). In: Bemerk. Reise Russ. Reich. 1: 220.
The native range of this species is NE. Europe to Korea and Himalaya, Subarctic America to NW. U.S.A. It is a rhizomatous hydrogeophyte and grows primarily in the temperate biome.
