]> GH barcode-01734408 United States of America Oklahoma shore of Lake Texoma by boat houses of the Univ. of Okla. Biological Station, 2.0 miles east of Willis, Sec. 8, T8S, R4E Zannichellia palustris Linnaeus Linnaeus 2023-04-13 10:43:51 C. B. Hellquist