United States, Minnesota, Cook, Boundary Waters Canoe Area Wilderness, Rolling bedrock terrain east of Swan Lake, 16 miles north-northwest of Grand Marais. T63N R1W SW1/4 of NW1/4 of SW1/4 Sec. 7
47.95088816 -90.50933122 +-6m. NAD1983
5313844N 685963E; T63N R01W sec7
521 meters
1710ft
Frequent in alder swamp just south of Lac Lake. Shaded beneath fairly dense and tall Alnus incana, with widely scattered Thuja occidentalis. Moist organic soil; semi-terrestrial setting.
Additional associates include Glyceria striata, Carex projecta, C. leptalea, C. intumescens, C. trisperma, Gymnocarpium dryopteris, Dryopteris expansa, D. carthusiana, Athyrium angustum, Phegopteris connectilis, Mitella nuda, Viola incognita, V. pallens, Equisetum sylvaticum, Rubus pubescens, R. strigosus, Circaea alpina, Clintonia borealis.