United States, Minnesota, Clay, Ulen County Park. Clay Co.; County park just north of Ulen; west side of rte. 32. Along South Branch Wild Rive River; SE1/4 NE1/4 Sec. 28, T142N, R44W (Ulen Twp). 142N 44W 28
47.086072 -96.268883 +-800m. WGS84
In wet soil or shallow water along river, with Alisma subcordatum, Carex vulpinoidea, Polygonum amphibium.