United States, Wisconsin, Ashland, Apostle Islands in Lake Superior, Stockton Island, Lake Superior shore S of Julian Bay Beach, on Presque Isle Pt.
T51N R01W sec06 NW4;
Slightly shaded red sandstone shelves; rooted in crevices with mosses and liverworts, no mineral soil evident. With Onoclea sensibilis, Coptis groenlandica, Solidago graminifolia, little elsewhere.