]> GH barcode-01746037 United States of America New York Barrett Pond. Austerlitz Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2020-08-26 07:42:53 C. B. Hellquist