]> GH barcode-01564701 United States of America Michigan Colwel Lake ca. 14.5 km SE of Shingleton, Sect. 9, T44N, R17W Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald (Chamisso & Schlechtendal) Fernald 2021-02-11 11:19:33 C. B. Hellquist & R. R. Haynes