]> GH barcode-01564712 United States of America Michigan along Upper Black River Road, ca. 1 1/4 miles north of Hangore Heights-Black Lake, SE 1/4, Sec. 34, T36N, R1E Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald (Chamisso & Schlechtendal) Fernald 2021-02-11 06:31:38 C. B. Hellquist