]> GH barcode-00947761 United States of America Michigan around the margin of Penny Lake, 9 mi W of Cheboygan. northern end of the Lower Peninsula Sparganium emersum subspecies acaule (Beeby ex Macoun) A. Haines (Beeby ex Macoun) A. Haines 2021-03-04 11:00:35 H. A. Gleason & H. A. Gleason, Jr.