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.
Occurrence Remarks:
In sometimes mowed edge of road, partial shade.