26 September 2007.
Maine, United States
Locality: Approximately 1.5 miles southwest from Rumford Center on Highway 2, adjacent to the Androscoggin River, Oxford County.
Coordinates: 44.5011, -70.6347
(Map it)
Elevation: 189m.
Georeference protocol: Lat/lon determined by GPS
Number of plants sampled: 6
Associated species: Rhus typhina, Ulmus, Alnus, Spiraea alba, Acer rubrum, Quercus rubra, and Pinus strobus.
Comment: Population of approximately >50 plants.
Collector(s):