]> GH barcode-01695679 United States of America Michigan Black River ca. 0.8 km S of the Cheboygan River and 3.2 km NW of Alverno, Sect. 16, T37N, R1W Potamogeton pusillus Linnaeus Linnaeus 2021-02-16 11:33:48 C. B. Hellquist & R. R. Haynes