United States, Minnesota, Fillmore, On the south side of the Root River, about 2 miles northeast of Whalan. SW1/4 of SW1/4 of section;Dorer Memorial Hardwood State Forest;103N;09W;02
43.7461111 -91.8855556
43° 44' 46" N,91° 53' 08" W;
On moist rocky bank about 2 meters from edge of the river. In partial shade of Acer saccharinum and Salix nigra. Associated with Impatiens capensis, Phalaris arundinacea, Sicyos angulatus.