]> GH barcode-01553987 United States of America Arkansas Ozark Plateau: Boston Mts.: Ozark National Forest-Sylamore Ranger District. Barkshed Recreational Area on North Sylamore Creek, about 10 mile southwest of Calico Rock. Leonurus cardiaca Linnaeus Linnaeus 2021-04-30 13:56:48 Dw. M. Moore