23 September 2009.
Wisconsin, United States
Locality: Very close to Pebble Brook, Vernon State Wildlife Area, NW 1/4 of NW 1/4 of Section 4, T5N, R19E, Genesee Quad, Waukesha County.
Coordinates: 42.9281, -88.2672
(Map it)
Elevation: 241m.
Georeference protocol: Lat/lon determined by GPS
Environment description: Wetland open woods.
Number of plants sampled: 20
Associated species: Acer saccharinum, Angelica atropurpurea, Cirsium muticum, Cornus sericea, Dasiphora fruticosa, Fraxinus nigra, Larix laricina, Pedicularis lanciolata, Physocarpus opulifolius, Platanthera psycodes, Rhus vernix, and Symplocarpus foetidus.
Collector(s):