]> GH barcode-01746036 United States of America New York Douglas Pond, North Stephantown Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2020-08-26 07:41:35 C. B. Hellquist