United States, Illinois, McHenry Co., 1.4 mi. NW of Richmond; NE of N Branch of Nippersink Creek; 1000 ft. S of WI state line; W facing slope ca. margin of Genoa City Sedge Meadow. T46N, R8E, Sec. 5, SEĀ¼.
42 -88
247 meters
810 ft
Glacial terrain; open field; occasionally burned; mostly exotics; N of bur oak remnant.
{"habit":"Locally abundant annual; leaves turning bronze-coppery; few spikelets subterranean."}