]> GH barcode-00946046 United States of America Pennsylvania along W Branch of Conococheague Creek, 2.25 mi NNE of Mercersburg Boechera laevigata (Muhlenberg ex Willdenow) Al-Shehbaz (Muhlenberg ex Willdenow) Al-Shehbaz 2020-09-30 09:17:01 J. W. Adams & E. T. Wherry