United States, Illinois, Williamson, South side of East Herrin Street (1500 North) 0.0-0.2 kilometer (0-0.1 mile) west of Chittyville Road, Johnston City 7.5 minute quadrangle. Elevation 404 feet.
T. 8S, R. 2E, NE1/4 NE1/4 NW1/4 SECT. 21
Periodically wet disturbed sandy loam.; Fallow field with Juncus spp., Fimbristylis autumnalis, Hordeum pusillum, Centunculus, and many more annuals.; Occasional perennial herb in fallow field; leaves shiny, paler beneath; spikes pale butterscotch.