14 July 2012.
Iowa, United States
Locality: Echo Valley State Park, N 1/2 of Section 22, T94N, R8W, West Union Quad, near West Union, Fayette County.
Coordinates: 42.9469, -91.7776
(Map it)
Elevation: 332m.
Environment description: Mixed hardwood forest. Very steep, northeast, north, and east-facing slopes.
Number of plants sampled: 3
Associated species: Cornus alternifolia, Diervilla lonicera, Ribes, Staphylea trifolia, and Tilia americana.
Collector(s):