United States, Minnesota, Clearwater, Red Lake Indian Reservation; Fairly level forested terrain 10 miles north-northeast of Clearbrook. On the northwest side of Fourth Lake along Butcher Knife Creek.
47.82560592 -95.33754703
5299562N 325048E; T150N R37W sec12
364 meters
1195 feet
Occasional in wet ash forest dominated by Fraxinus nigra. Patchy to fairly dense understory of F. nigra, Ulmus americana, Quercus rubra. Mostly in full shade. Small clumps. Soil saturated just below surface; decomposed peat over very fine sand.
Additional associates include Carex gracillima, C. radiata, C. deweyana, Glyceria striata, Stellaria longifolia, Smilacina stellata, Lysimachia ciliata, Equisetum pratense, E. arvense, Anemone canadense, Viola macloskeyi, Geum rivale, Rubus pubescens, Ribes americana, Toxicodendron rydbergii.