]> GH barcode-01924542 United States of America Pennsylvania 6.2 mi SE of Farmington (jct. PA 381) on US 40: Markleysburg Bog & vicinity Ageratina altissima (Linnaeus) R. M. King & H. Robinson (Linnaeus) R. M. King & H. Robinson 2020-09-24 08:13:15 S. A. Thompson