| Classification | Potamogetonaceae: Potamogeton | 
| Harvard University Herbaria Barcode(s) | 01572856 | 
| Collector | C. B. Hellquist & R. R. Haynes | 
| Collector number | 10349 | 
| Country | United States of America | 
| State | Michigan | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Cheboygan County | 
| Locality | southeastern portion of Twin Lakes near the Twin Lakes campground, ca. 9.7 km SE of Alverno, Sect. 2, T36N, R2E | 
| Date Collected | 1975-07-03 | 
| Habitat | pH 9.2, alkalinity 141.0 mg/l | 
| Container | Flora of Michigan | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/cb7ab38c-f246-4901-bfd6-ee601066eef8 | 
| Harvard University Herbaria Barcode | 01572856 | 
| Herbarium | GH | 
| Previous ownership | Ex Herbarium of Boston State College; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) | 
| Family | Potamogetonaceae | 
| Determination | Potamogeton gramineus Linnaeus | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |