]> GH barcode-01688099 United States of America Michigan just north of Haymarsh Creek, Nelson Road, 3 1/2 miles N of Star City, West Branch Twp., Sec. 1, T23N, R6W Potamogeton hillii Morong Morong 2021-02-11 13:11:08 C. B. Hellquist & C. E. Hellquist