United States, Wisconsin, Sawyer, Chetac Lake
T37N R09W sec16
Muck bottom in 0-2 meters where it forms dense canopies with other floating leaf species. Common assoc.: (Nuphar variegata) spatterdock, (Eleodea canadensis) common waterweed, (Ceratophyllum demersum) coontail, (Potamogeton zosteriformis) flat-stem pondweed, (Spirodela polyrhiza) large duckweed, (Lemna minor) small duckweed.
Common in calm water bays throughout the lake.