]> GH barcode-01564703 United States of America Michigan Whitmarsh L. ca. 12.9 km north of Trout Lake, Sect. 6, T45N, R5W Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald (Chamisso & Schlechtendal) Fernald 2021-02-11 11:21:33 C. B. Hellquist & R. R. Haynes