United States, Minnesota, Mower, Lake Louise State Park, about 1 mile north-northwest of LeRoy. At the confluence of the Upper Iowa and the Little Iowa Rivers. T 101N R 14W NW1/4 of NE1/4 of Sec 28
43.5272222 -92.5177778
43°31'38"N, 92°31'4"W
A low marshy habitat in a roadside ditch. Associated with Scutellaria lateriflora, Impatiens capensis, Lycopus uniflorus.