28 September 2010.
Wisconsin, United States
Locality: Boat ramp on south side of Little Falls Lake, Willow River State Park, NW 1/4 of SW 1/4 of Section 9, T29N R19W, Somerset South Quad, St. Croix County.
Coordinates: 45.0274, -92.7209
(Map it)
Elevation: 299m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Scattered throughout lakeshore forest
Number of plants sampled: 11
Associated species: Acer negundo, Quercus ellipsoidalis, Q. macrocarpa, Vitis riparia, and Zanthoxylum americanum.
Comment: Some very young specimens planted in parking lot near visitors center (possibly unknown origin).
Collector(s):