United States, Illinois, Cook, Thornton Fractional Prairie.
Thornton Fractional Prairie, Calumet City: 15600 South Superior St., 3 blocks west of Burnham Ave. Collected at edge of central path on east edge of of site near road.
Partly shaded, degraded area near path
Ambrosia trifida, A. artemisiifolia var. elatior, Daucus carota, Melilotus alba, Solidago altissima