16 October 2008.
Pennsylvania, United States
Locality: Susquehanna River, west side from Route 372 bridge, York County.
Coordinates: 39.8150, -76.3286
(Map it)
Environment description: River scour area below a hydroelectric dam. Bedrock outcrops jut into river. Cracks with small amounts of soil and some plants. Thin soil over bedrock.
Number of plants sampled: 100
Comment: Growing in association are Andropogon gerardi, Betula nigra, Solidago simplex ssp. randii var. racemosa, Corcopsia tripteris, Sorghastrum nutans, Schizachyrium scoparium, Arabidopsis lyrat. Native plants scattered in small patches.
Collector(s):