United States, Minnesota, Cook, Boundary Waters Canoe Area Wilderness, On the shores of Trine Lake in rolling bedrock terrain north of Eagle Mountain, 15 miles northwest of Grand Marais.T63N R2W SE1/4 of SE1/4 of SW1/4 Sec. 23
47.91980231 -90.54411597 +-6m. NAD1983
5310306N 683476E; T63N R02W sec23
582 meters
1910ft
Rare to occasional (very locally) on a long, low bedrock point on southern shore. Loose patches on a very gradually sloping lakeshore increasingly exposed by receding water levels (~12 inches below the early season high mark). Moist sand (over gabbro/diabase bedrock), just above the water line. Full sun.
Associates include Carex cryptolepis, C. echinata, C. lasiocarpa, C. michauxiana, Eleocharis palustris, Juncus brevicaudatus, Euthamia graminifolia, Utricularia cornuta, Hypericum majus, Viola pallens, Drosera rotundifolia, Myrica gale.