]> GH barcode-01688603 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 natans Linnaeus Linnaeus 2021-02-13 06:54:44 C. B. Hellquist & R. R. Haynes