| Classification | Potamogetonaceae: Potamogeton | 
| Barcode(s) | 01695999 | 
| Collector | C. B. Hellquist & R. R. Haynes | 
| Collector number | 12047 | 
| Country | United States of America | 
| State | Michigan | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Presque Isle County | 
| Locality | McIntosh Lake, Co. Rte. 638, ca. 3 mi SE of Millersburg, Sec. 25, T34N, R3E | 
| Date Collected | 1977-06-23 | 
| Habitat | pH 8.4, alkalinity 107.0 mg/l | 
| Container | Flora of Michigan | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/29e93503-2d07-4351-952b-37c86a8f67a2 | 
| Harvard University Herbaria Barcode | 01695999 | 
| Herbarium | GH | 
| Previous ownership | Ex Herbarium of Boston State College; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton pusillus subsp. tenuissimus (Mertens & Koch) R. R. Haynes & Hellquist | 
| Determination Remarks |  [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |