]> GH barcode-01746134 United States of America Pennsylvania Connell Pond, 4 mi SE of Dushore Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist (Mertens & Koch) R. R. Haynes & Hellquist 2020-11-18 10:40:31 H. A. Wahl