United States, Minnesota, Washington, Carpenter Nature Center. Washington Co., T26N R20W S4...North ravine just W of railroad bed;Carpenter Nature Center;026N;20W;04
44.768259 -92.812758 +-816m.
Floodplain; mixed forest of Ulmus rubra, Salix amygdaloides, and Acer saccharinum. Rhizomatous; associated with Lysimachea nummularia, Laportea canadensis, and Boehmeria cylindrica.