United States, Illinois, Cook, South side of Calumet Sag Road (Illinois Route 83; 111th Street), 4.3 kilometers east of Hastings. Coordinate Datum: WGS84/NAD83.
41.68727 -87.92084
T. 37N, R. 11E, SW1/4 SE1/4 Sect. 13
198 meters
650
Roadside thickets at margin of mowed right-of-way. Very disturbed. Flowers white; occasional shrub 2 meters tall, leaves only slightly paler beneath.