18 October 2012.
Illinois, United States
Locality: Stronghold Conference Center along the west side of Illinois Route 2 approximately one mile north of Oregon on the Rock River watershed, T24N R10E SW 1/4 of SE 1/4 of Sec. 28, Ogle County
Coordinates: 42.0469, -89.3452
(Map it)
Elevation: 244m.
Georeference protocol: Lat/lon determined by GPS
Habitat: Wild Habitat
Environment description: Mixed hardwood forest with east-facing slope on limestone
Associated species: Acer saccharum, Carya cordiformis, Carya ovata, Celtis occidentalis, Cornus alternifolia, Fraxinus quadrangulata, Gymnocladus dioicus, Juglans nigra, Prunus serotina, Ptelea trifoliata, Smilax rotundifolia, Quercus alba, Q. muehlenbergii, Q. rubra, Tilia americana and Vitis riparia
Comment: Abundant population.
Collector(s):