United States, Minnesota, Carlton, Carlton County...outcrops...one mile east of Thomson...T48N R16W SE1/4 SW1/4 SW1/4 Sec. 4;;048N;16W;04
46.664319 -92.381803 +-137m.
On large outcrops of dry, upturned, interbedded, slate and graywacke of the Thomson formation...dry, thin soil and in cracks of bedrock. Full sunlight to partial shade under Pinus strobus & Picea glauca. Associates include Viola adunca, Selaginella rupestris, Potentilla norvegica, Lactuca canadensis, Solidago juncea, Polygonum convolvulus, Woodsia ilvensis, Carex merritt-fernaldii, Danthonia spicata, Vaccinium angustifolium, Rhus typhina.