]> GH barcode-01632194 United States of America Oklahoma public access of Elmer Tomas Lake, Witchita Mountains National Wildlife Refuge, 1 mile west of Medicine Park, R12W, T3N, Sec. 13. Echinodorus berteroi (Sprengel) Fassett (Sprengel) Fassett 2020-05-05 14:17:30 C. B. Hellquist & C. E. Hellquist