06 October 2008.
Pennsylvania, United States
Locality: East bank of Susquehanna River just west of Seshequin Road, north of junction with Chemung River; 6.5 miles by road north of bridge over Sushequin, Bradford County.
Coordinates: 41.9383, -76.5019
(Map it)
Environment description: Rocky riverside scoured by water and perhaps ice; herbaceous dominated with thick stands of Spartica pectinata, Hypericum ascyon, and lots of Lythrum solic. Plants are in scattered patches in nice native habitat. Soil over cobbles
Number of plants sampled: 35
Collector(s):