Locality:
United States, Wisconsin, Polk, North Pipe Lake\\\\r\\\\n
45 -92
Verbatim Coordinates:
T35N R15W sec10
Habitat:
Rocky to sandy bottoms in 0-2 meters of water. Common assoc.: (Myriophyllum tenellum) dwarf water milfoil, (Juncus pelocarpus) brown-fruited rush, (Ranunculus flammula) creeping spearwort, (Utricularia resupinata) small purple bladderwort.
Occurrence Remarks:
Abundant thoughout the lakes where it forms thick mats in shallow water. Emergent form located along shore interspersed among other emergents. [duplicate accession no. of Potamogeton praelongus, 7/5/2007, Walchak, Dan, Menominee Co. - editor added "a"]