09 October 2008.
Pennsylvania, United States
Locality: West branch of Susquehanna River, south side, east a few hundred meters from bridge over the river east of Hyner, Clinton County. Also collected on north side, but south had more plants.
Coordinates: 41.3256, -77.6364
(Map it)
Environment description: South side is an extensive gravel/cobble bar off the shore; plants occur close to the short but also in more barren cobbled areas as well. Thin soil between cobble/gravels.
Number of plants sampled: 250
Comment: Growing in association are Betula nigra, Vernonia noveboracensis, ludwigia alterniflora, Sorghastrum nutans, Spartina pectinata. Plants are native.
Collector(s):