25 September 2009.
Illinois, United States
Locality: Illinois: Jo Daviess County; Along Airhart Road, NE 1/4 of NE 1/4 of Section 36, T26N, R2E, Blackhawk (IL-IA) Quad.
Coordinates: 42.2083, -90.2150
(Map it)
Elevation: 196m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Roadside. Associated with Cornus amomum subsp. obliqua, C. drummondii, Juglans nigra, Rudbeckia laciniata, and Viburnum lentago.
Number of plants sampled: 4
Collector(s):