United States, Illinois, Iroquois, Middleport Lafayette Post Road Historic Site, 1.9 mile southeast of Watseka, just east of Sugar Creek. (WGS84/NAD83).
40.75381 -87.71596
T. 26N, R. 12W, NE 1/4 Sect. 9
Open, sandy old-field area near thicket on south side of sand pond. Associates: Carex grisea, C. leavenworthii, C. swanii, Fragaria virginiana, Onoclea sensibilis, Potentilla simplex, Rosa multiflora, Rubus allegheniensis, Sisyrinchium angustifolium.