]> GH barcode-01564462 United States of America Oklahoma Sunset Pool ca. 1.0 miles west of Witchita Mountains National Wildlife Refuge Headquarters, R15W, T3N, Sec. 13 Potamogeton diversifolius Rafinesque Rafinesque 2020-03-16 20:43:41 C. B. Hellquist & C. E. Hellquist