United States, Minnesota, Washington, At the southwest end of Lake Elmo, about one mile south of the town of Lake Elmo; NW1/4 NE1/4 section 26, T 29N R 21W [Lake Elmo County Park]
44.9772224 -92.8911133
44°58'38"N, 92°53'28"W; collector
In shallow water near the shore. Associated species include: Potamogeton richardsonii, Myriophyllum sibiricum, Elodea canadensis, Ceratophyllum demersum.