United States, Wisconsin, Barron, Beaver Dam Lake
T36N R14W sec35
Muck bottom in 0-2 meters where it forms dense canopies with other floating leaf species. Common assoc.:(Nymphaea odorata) white water lily, (Potamogeton natans) floating-leaf pondweed, (Pontederia cordata) pickerelweed, (Brasenia schreberi) watershield.
Less common than white water lily in muck bays and sheltered shorelines. It generally prefers a firmer bottom than Nymphaea odorata.