15 July 2012.
Iowa, United States
Locality: Cedar Valley County Park, NW 1/4 of NW 1/4 of SW 1/4 of Section 20, T80N, R3W, Rochester Quad, near Cedar Valley, Cedar County.
Coordinates: 41.7197, -91.2295
(Map it)
Elevation: 209m.
Environment description: Bottomland hardwood forest.
Number of plants sampled: 25
Associated species: Acer saccharinum, Carya cordiformis, Quercus macrocarpa, and Urtica dioica.
Collector(s):