]> GH barcode-01919103 United States of America Michigan north end of Monroe Lake, 3.0 miles west of Weadock, Monro Twp. SW 1/4, Sec. 4, T37N, R3W Heteranthera dubia MacMillan MacMillan 2021-01-28 18:45:09 C. B. Hellquist & R. R. Haynes