]> GH barcode-01688156 United States of America Michigan east side of Black River near stream south of Myers Creek ca. 1 mi NW of Alverno, Sec. 27, T37N, R1W Potamogeton haynesii Hellquist & G. E. Crow Hellquist & G. E. Crow 2021-02-11 11:33:29 C. B. Hellquist & R. R. Haynes