United States, Illinois, La Salle Co., Starved Rock State Park; ca. of IL 71; bridge crossing over Salt Wells Stream; near E park boundary; S side IL River. T33M, R2E, Sec. 24, SW¼, SW¼, SE¼, SE¼.
41.3072 -88.9381
143 meters
460-470 ft
hrubland floodplain forest and roadside; all degraded; with Schoenoplectus pungens, Puccinellia; clay-loam alluvial soil and road fill; disturbed.