03 October 2013.
Illinois, United States
Locality: Along North Hammer Road, very close to Fox Creek, Mill Creek Lake, Clark County.
Coordinates: 39.4071, -87.7898
(Map it)
Elevation: 175m.
Environment description: Ditch. Low area at edge of small copse of Platanus occidentalis. One quarter shade. 20 degree slope with northern exposure. Highly organic soil.
Associated species: Asimina triloba, Campsis radicans, Cercis canadensis, Juglans nigra, Platanus occidentalis, and Rosa multiflora.
Collector(s):