United States, ILLINOIS, SALINE, Harrisburg; 0.2 mile north of US Rt. 45; 0.3 mile southwest of Middle Fork of the Saline River, just south of Krigia Flats Natural Area. Elev. 350-360 ft. Galatia 7.5 min quadrangle
T. 9S, R. 6E, NW1/4 SW1/4 SECT. 11
Seasonally wet clay-silt-sand mix. ; Margin of post oak flatwoods at north end of fallow agricultural fields.; Culms dark green, few in clump; spikes few, congested at apex; infrequent.