06 August 2008.
Illinois, United States
Locality: Along trail heading towards lake, Crosby Road to parking lot, Morrisson-Rockwood State Park, approximately 2 miles north of Morrisson, Whiteside County.
Coordinates: 41.8422, -89.9689
(Map it)
Elevation: 247m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Woodland area. 100% filtered shade.
Number of plants sampled: 17
Associated species: Celtis occidentalis, Juglans nigra, Lonicera maackia, and Quercus rubra.
Comment: Population of approximately 25 plants.
Collector(s):