]> GH barcode-01572238 United States of America Oklahoma ca. 1 1/2 miles east of Dougherty along the Dougherty-Nebo Road, R3E, T2S, Sec. 7 Potamogeton foliosus Rafinesque Rafinesque 2020-03-24 12:44:51 C. B. Hellquist & J. Holt