United States, Minnesota, Sherburne, Sherburne Co. In Sherburne National Wildlife Refuge, about 3 mi NE of Orrock. NE1/4 SW1/4 sec 34, T35N R27W;Sherburne National Wildlife Refuge;035N;27W;34
45.4791679 -93.6875
On the sandy beach of a small lake in Beergerson Slough. Associated species include: Sagittaria latifolia, Glyceria borealis, Ludwigia palustris, Juncus canadensis.