]> GH barcode-01688103 United States of America Michigan marsh at S end of West Twin Lake near culvert under Klooster Rd, Marion Twp., NW 1/4 Sec. 23, T33N, R8W Potamogeton hillii Morong Morong 2021-02-11 13:15:05 C. B. Hellquist & C. T. Philbrick