24 August 2003.
Iowa, United States
Locality: Along Old Indian Trail, overlooking Pease Creek, Ledges State Park, S 1/2 of SE 1/4 of SW 1/4 of Section 16, T83N, R26W, Madrid NW Quad, Boone County.
Coordinates: 41.9950, -93.8858
(Map it)
Elevation: 289m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Sandstone ridge.
Associated species: Quercus rubra, Ostrya virginiana, Toxicodendron radicans, Amorpha canescens, and Amelanchier.
Collector(s):