]> GH barcode-01617911 United States of America Michigan Cheboygan State Park marsh near Duncan Bay-Lake Huron, ca. 2 1/2 miles east of Cheboygan. Sec. 34, T38N, R1W Alisma plantago-aquatica Linnaeus Linnaeus 2020-12-10 20:55:12 C. B. Hellquist & R. R. Haynes