United States, Minnesota, Winona, Whitewater State Park. Approx. 170 meters upslope (southwest) of County Rd. 39; 0.75 miles northwest of MN Trunk Hwy 74; 1.95 miles southwest of Elba.
44.08 -92.05
T107N R10W sec17
Only one clump observed near upper north facing slope in deep shade.
Heavily wormed loamy substrate.
Under Quercus rubra, Acer saccharum, Betula papyrifera, Quercus alba canopy. Ground associates include Osmunda claytonii, Polemonium reptans, Carex radiata, Thalictrum thalictroides, Hepatica americana, Carex blanda, and Acer saccharum seedlings.