]> GH barcode-01688161 United States of America Michigan bay west of mouth of Upper Black River, in Black Lake (SE 1/4 sec. 28, T36N, R1E). Potamogeton haynesii Hellquist & G. E. Crow Hellquist & G. E. Crow 2021-02-11 11:40:15 E. G. Voss