11 October 2008.
Pennsylvania, United States
Locality: Forest County. Tionesta Creek off of Route 666, 4.3 miles west of Lynch or just a little west of junction with Lower Sheriff Run.
Coordinates: 41.6172, -79.1228
(Map it)
Environment description: Herbaceous dominated strip adjacent to river and a forest. Growing in association are Spartina pectinata, Eutrochium fistulosum, Euthamia graminifolia, Lythrum salicaria.
Comment: Appears native. GAZETTEER: P. 31, D6
Collector(s):