]> GH barcode-01695999 United States of America Michigan McIntosh Lake, Co. Rte. 638, ca. 3 mi SE of Millersburg, Sec. 25, T34N, R3E Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2021-02-16 06:43:54 C. B. Hellquist & R. R. Haynes