]> GH barcode-01878776 United States of America Oklahoma 1/2 mile no. of Jct. of U.S. 271 and U.S. 270 Castilleja purpurea (Nuttall) G. Don (Nuttall) G. Don 2019-10-30 20:42:30 A. Nelson, R. A. Nelson & G. J. Goodman