]> GH barcode-01564698 United States of America Michigan pond 9.5 miles due S.E. of Cheboygan, Sect. 27, T37N, R1E Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald (Chamisso & Schlechtendal) Fernald 2021-02-11 11:13:49 C. B. Hellquist & R. R. Haynes