Photo: Potamogeton natans.

Covering a pond. Säppi, Finland. Wild. 2000-08-16.
Potamogeton natans L. Engl.: broad-leaved pondweed. Deu.: Schwimmendes Laichkraut. Suom.: uistinvita. Sven.: gäddnate
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Photo: Potamogeton natans.