United States, Minnesota, Mahnomen, White Earth Indian Reservation / White Earth State Forest. Mahnomen Co.; located 2 miles SE of North Twin Lake. Plants occur along the NW shore of Bass Lake; T143N R39W SW1/4 of N Mahnomen Co.; located 2 miles SE of North Twin Lake. Plants occur along the NW shore of Bass Lake; T143N R39W SW1/4 of NE1/4 of Sec 3. 143N 39W 3
47.235785 -95.614533 +-2734m.
Associated with Polygonum amphibium var. stipulaceum, Potamogeton praelongus, Elodea canadensis, Myriophyllum sibiricum, Najas flexilis.