]> GH barcode-01688154 United States of America Michigan Pickerel channel between Pickerel Lake and Crooked Lake ca. 2 mi. SE of Oden, SE 1/4 Sect. 21, SW 1/4 Sect. 22, T35N, R4W Potamogeton haynesii Hellquist & G. E. Crow Hellquist & G. E. Crow 2021-02-11 11:31:03 C. B. Hellquist & R. R. Haynes