United States, Illinois, Piatt, Grand Prairie Section of the Grand Prairie Natural Division of Illinois. Robert Allerton Park. Weldon East 7.5 minute quadrangle. Elevation about 650 feet. UTM Zone 16, 359704mE, 4429293mN.
40.0041 -88.6436
T. 18N, R. 5E, NE1/4 SW1/4 SE1/4 NW1/4 Sect. 21
Along trail in mesic wooded ravine dominated by Quercus alba with Celtis occidentalis, Cercis canadensis, Viburnum prunifolium, Zanthoxylum americanum, Staphylea trifoliata, Sanicula odorata, Agrimonia rostellata, Geum canadensis, Alliaria petiolata, etc.