United States, Wisconsin, Douglas, Minong Flowage, Bays N of the T Bridge. [Washburn Co.- original in error based on Lat./Long.]
46.17298° N, 91.92231° W; T43N R12W sec30
Muck bottom in shallow water 0-1.5 meters deep. Common assoc.: (Utricularia vulgaris) common bladderwort, (Brasenia schreberi) watershield, (Nymphaea odorata) white water lily, (Nuphar variegata) spatterdock, (Utricularia gibba) creeping bladderwort.
Uncommon; almost all individuals were found in the northwest bays where it was found among floating leaf species.