United States, Minnesota, Scott, Louisville Swamp, about 7 miles southwest of Shakopee. NE of SE of section;;115N;23W;31
44.726293 -93.627916 +-629m. WGS84
44.7227966° N,93.6267343° W;collector
Substrate soft, silty. Along bank in gently flowing backwater of the Minnesota River. Associated with Sagittaria cuneata, S. latifolia, Cyperus esculentus, C. erythrorhizos, Rorippa palustris.