16 October 2008.
Pennsylvania, United States
Locality: York County. Susquehanna River, west side of river northwest from bridge on Route 372 crossing. River scour area of major river below hydroelectric dam.
Coordinates: 39.8150, -76.3286
(Map it)
Environment description: Cracks with small amounts of soil and plants in the bedrock outcrops jutting into the river. Growing in association are Panicum virgatum, Betula nigra, Solidago simplex ssp. randiivar, Coreopsis tripteris, Sorghastrum nutans, Schizachyrium scoparium, Arabidopsis lyrata.
Comment: Clearly native, lot of plants thinly scattered in small patches. GAZETTEER: P. 93, B7
Collector(s):