]> GH barcode-01732631 United States of America Michigan Black River S of Cheboygan River ca. 3.2 km N of Alverno, Sect. 16, T37N, R1W Stuckenia filiformis subspecies occidentalis (J.W. Robbins) Haynes, D.H. Les & M. Kral (J.W. Robbins) Haynes, D.H. Les & M. Kral 2021-03-06 11:07:01 C. B. Hellquist & R. R. Haynes