United States, Illinois, Cook, Calumet City Prairie.
Calumet City Prairie, Calumet City. On south side of State St., 3/4 mile east of Torrence Ave., adjacent to power lines. Cleared, graded area on east border of site.
Disturbed area with bare, wet sandy soil
Avena sativa, Rorippa palustris var. fernaldiana, Cyperus strigosus
Locally common herb. Some plants with red tinged flowers