United States, Minnesota, Lake, Rolling to moderately rugged bedrock terrain south of the Fernberg Road, 14 miles east-northeast of Ely, in the central portion of Ojibway Lake.
Local on an island. Several small but often dense patches, many with dozens of fronds, in crevices of shaded, north-facing, much-fractured greenstone cliffs that rise up to 15 feet directly out of the lake. Often rooting in thin moss mats on the sparsely-vegetated, vertical to overhanging, metamorphosed basalt bedrock. Additional patches occur on the next island to the east where shoreline cliffs range from 10-25 feet high.
Associates include Polypodium virginianum, Dryopteris fragrans.