United States, Minnesota, Saint Louis, Boundary Waters Canoe Area Wilderness / Superior National Forest. St. Louis County...Along the shore of Clark Lake in the Boundary Waters Canoe Area Wilderness, Superior National Forest...T 63N R 14W NE1/4 of SW1/4 of Sec 23. 063N 14W 23
47.9213889 -92.0877778
In the littoral zone, in a rocky/silty substrate. Emergent from about 25 cm of water. Associated with Eleocharis robbinsii, Lobelia dortmanna, Isoetes echinospora, Eriocaulon aquaticum.