Potamogeton x haynesii Hellq. & G.E.Crow
Family: Potamogetonaceae
Haynes' pondweed
Potamogeton x haynesii image
University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)  
Etymology: Potamogeton: from Greek potamos, "a river," and geiton, "a neighbor," because of the habitat
Plants: perennial aquatic; from rhizomes
Leaves: alternate, entire, with prominent midvein
Flowers: green-brown, small; inflorescence spike
Fruits: dry seed
Conservation Status: Native