]> GH barcode-01564707 United States of America Michigan small bay at northeast portion of Black Lake 11.3 km N of Tower, Sect. 28, T36N, R1E Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald (Chamisso & Schlechtendal) Fernald 2021-02-11 11:25:34 C. B. Hellquist & R. R. Haynes