Habitat:
Along roadsides, in fields and on borders of woods. Moist, compacted, somewhat rocky soil, in light shade to full sun. Associates include Rubus strigosus, Festuca rubra, Solidago canadensis, Tanacetum vulgare, Apocynum androsaemifolium, Asclepias syriaca, Bromus inermis, and scattered Lilium michiganense.