United States, Minnesota, Wilkin, Ca. 8.5 mi SW of Campbell, N of rte 55, bordering the Bois de Sioux River; S1/2 Sec. 22 T130N R47W (Campbell Twp.);;130N;47W;22
46.057313 -96.55987 +-969m.
In moist to wet ground bordering river, with Phalaris arundinacea, Polygonum lapathifolium, Cyperus odoratus