]> GH barcode-01746012 United States of America Michigan Fox River W of Seney at Rt. M 28, Sect. 29, T46N, R13W Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2021-02-16 19:14:40 C. B. Hellquist & R. R. Haynes