Locality:
United States, Wisconsin, Barron, Beaver Dam Lake
45 -92 48372
Verbatim Coordinates:
45 N, 092 W; T35N R14W sec01
Habitat:
Found only at the point in 0-0 meters of water over firm muck. Submersed "graminea" may actually be this species. Common assoc.: (Nymphaea odorata) white water lily, (Nuphar variegata) spatterdock.