]> GH barcode-00999158 United States of America Pennsylvania along W Branch of Conochocheague Creek, 2.25 mi NNE of Mercersburg Cardamine parviflora var. arenicola (Britton) O. E. Schulz (Britton) O. E. Schulz 2020-10-01 08:58:12 J. W. Adams & E. T. Wherry