]> GH barcode-01572857 United States of America Michigan small pond E of Twin Lakes ca. 9.7 km E of Alverno, SE 1/4 Sect. 2, T36N, R2E Potamogeton gramineus Linnaeus Linnaeus 2021-02-11 13:49:43 C. B. Hellquist & R. R. Haynes