| Classification | Potamogetonaceae: Potamogeton | 
| Harvard University Herbaria Barcode(s) | 00449446 | 
| Collector | I. W. Clokey | 
| Collector number | 3118 | 
| Country | United States of America | 
| State | Colorado | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado: Boulder County | 
| Locality | Lake Eldara | 
| Date Collected | 1918-08-13 | 
| Verbatim Elevation | 9280 ft. | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c24dc316-7107-4060-bcc6-f67ee29cbdec | 
| Harvard University Herbaria Barcode | 00449446 | 
| Herbarium | GH | 
| Previous ownership | [ex] Herbarium I. W. Clokey | 
| Family | Potamogetonaceae | 
| Determination | Potamogeton alpinus var. tenuifolius (Rafinesque) Ogden | 
| Determined by | Ogden, Eugene Cecil | 
| Date Determined | 1938 | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |