]> GH barcode-01924548 United States of America Pennsylvania Ligonier township. near top of Darlington Hill, along Darlington-Rector Road (PA Road 64060), ca. 8.0 km NNW of PA Hwy 711 Ageratina altissima (Linnaeus) R. M. King & H. Robinson (Linnaeus) R. M. King & H. Robinson 2020-09-24 08:22:23 F. H. Utech