]> GH barcode-01688087 United States of America Michigan Haymarsh Creek, Nelson Road 3 1/2 miles north of Star City, West Branch Twp. Sec. 1, T23N, R6W Potamogeton hillii Morong Morong 2021-02-11 17:57:21 C. B. Hellquist & C. E. Hellquist