Locality:
United States, Wisconsin, Iowa, 4 km NW of Avoca, Avoca Prairie State Natural Area, the far western parking area, along Marsh Creek near its entrance into the Wisconsin River
Habitat:
Floodplain forest with Acer saccharinum, Quercus bicolor, Fraxinum pennsylvanica var. pennsylvanica and var. subintegerrima and adjacent road and parking area with crushed limestone gravel. Coarse crushed dolomite gravel of parking area.
Occurrence Remarks:
Common here in one small disturbed area.