United States, Minnesota, Wadena, Along the Cat River, four miles northeast of Sebeka. UTM: 5171642N 343790E. NW1/4 of NE1/4 of SE1/4 of section;;137N;35W;13
Level outwash plain. Frequent very locally in small (~1-acre) opening in tamarack swamp. Full sun to partial shade beneath scattered Larix laricina (most trees dead locally), and also Alnus incana and Betula glandulifera in fairly dense shrub layer here. Quaky saturated peat. This opening is somewhat wetter than surrounding tamarack swamp. Additional associates include Carex limosa, C. prairea, C. paupercula, C. canescens, C. interior, Glyceria grandis, Thelypteris palustris, Calla palustris, Scheuchzeria p