]> GH barcode-01780630 United States of America Oklahoma Spring Creek at Big Spring area, 2.5 miles northeast of Reagan, R6E, T2S, Sec. 18, SE 1/4 Ludwigia repens J. R. Forster J. R. Forster 2020-05-11 15:57:40 C. B. Hellquist & J. Holt