]> GH barcode-01739913 United States of America Oklahoma Spring Creek northof second dam above the jct. with Pennington Creek, 1 3/4 miles north of Reagan, NW 1/4, Sec. 19, T7S, R6E Nuphar advena (Aiton) W. T. Aiton (Aiton) W. T. Aiton 2020-04-28 09:17:53 C. B. Hellquist & L. Crouch