United States, Minnesota, Douglas, Lake Carlos State Park. In Lake Carlos State Park, on the west side of Hidden Lake about 6 miles north of Alexandria... T 129N R 37W SW1/4 of SW1/4 of Sec 9. 129N 37W 9
45.9958333 -95.3469444
45.9958333° N,95.3469444° W;collector
In a hardwood swamp dominated by Fraxinus nigra. In shallow peaty muck. Associated with Mitella nuda, Carex interior, Matteuccia struthiopteris var. pensylvanica, Caltha palustris.