]> GH barcode-01564459 United States of America Oklahoma Crater Lake, 5.0 miles north of Cache. Witchita Mtns. Nat'l Wildlife Refuge, Sec. 25, T3N, R14W Potamogeton diversifolius Rafinesque Rafinesque 2020-03-16 20:31:01 C. B. Hellquist & L. Crouch