]> GH barcode-01746006 United States of America Michigan Duck Lake-Lake George of St. Mary's River, Sugar Island ca. 10 miles SE of Sault St. Marie, Sec. 26, T47N, R2E Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2021-02-16 06:50:25 C. B. Hellquist & R. R. Haynes