]> GH barcode-01695199 United States of America Michigan Rainy River near Black Lake, ca. 6 mi N of Onaway, Sec. 5, T35N, R1E Potamogeton obtusifolius Mertens & W. D. J. Koch Mertens & W. D. J. Koch 2021-02-15 07:09:58 C. B. Hellquist