United States, Minnesota, Aitkin, Savanna Portage State Park; about one mile west of Shumway Lake...T 50N R 22W SW1/4 of SE1/4 of Sec 7;Savanna Portage State Park;050N;22W;07
46.8286111 -93.1744444
46.8286111° N,93.1744444° W;collector
In emergent marsh dominated by Calamagrostis canadensis. Associated with Scutellaria galericulata, Polygonum amphibium var. stipulaceum, Carex rostrata var. utriculata, C. retrorsa.