]> GH barcode-01572050 United States of America Michigan eastern end of Hardwood Lake ca. 12.0 miles E-SE. of West Branch, NW 1/4, Sec. 6, T21N, R4E Potamogeton foliosus Rafinesque Rafinesque 2021-02-11 07:13:28 C. B. Hellquist & R. R. Haynes