United States, Illinois, Lee, Green River State Conservation Area. Along Pump Factory Road. Green River Lowland Section of the Grand Prairie Natural Division. Coordinate Datum: WGS84/NAD83.
41.64413 -89.48685
T. 19N, R. 9E, N part SW1/4 SW1/4 SE1/4 Sect. 8
In sedge meadow / wet prairie. Growing with Cyperus strigosus, Juncus marginatus, J. torreyi, Pycnanthemum virginianum. Solidago missouriensis, etc.