Photographer: Robert W. Freckmann
Potamogeton obtusifolius Mert. & W.D.J.Koch
Potamogeton: from Greek potamos, "a river," and geiton, "a neighbor," because of the habitat
obtusifolius: from Latin obtus meaning "dull or blunt," and folium meaning "leaf"
|Plant: ||perennial, submersed aquatic; from rhizomes|
|Flower: ||green-brown, small, stalk short; inflorescence spike|
|Fruit:||dry seed with low, sharp dorsal ridge|
|Leaf:||alternate, entire, with prominent midvein; often tinges with red; blunt tip; glands at leaf node; stipules membranous|