]> GH barcode-01695994 United States of America Maryland Purnell P. Snow Hill Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2021-02-26 11:52:51 F. Shreve [data not captured]