]> GH barcode-01924471 United States of America Maryland 2.1 mi SE of Pennsylvania/Maryland border on US 40: Savage River State Forest. Ageratina altissima (Linnaeus) R. M. King & H. Robinson (Linnaeus) R. M. King & H. Robinson 2020-11-12 14:40:44 S. A. Thompson [data not captured]