]> GH barcode-01688157 United States of America Michigan Mullett Lake at Pigeon River Cove, Koehler Twp., Sec. 9, T35N, R2W Potamogeton haynesii Hellquist & G. E. Crow Hellquist & G. E. Crow 2021-02-11 11:34:21 C. B. Hellquist & C. T. Philbrick