]> GH barcode-01564708 United States of America Michigan stream on east side of Black River south of Myers Creek 1.6 km NW of Alverno. Sect. 27, T37N, R1W Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald (Chamisso & Schlechtendal) Fernald 2021-02-11 11:26:32 C. B. Hellquist & R. R. Haynes