| Classification | Potamogetonaceae: Potamogeton | 
| Barcode(s) | 01564020 | 
| Collector | C. B. Hellquist & L. Crouch | 
| Collector number | 12778 | 
| Country | United States of America | 
| State | Oklahoma | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: Johnston County | 
| Locality | Spring Creek north of second dam above the jct. with Pennington Creek, 1 3/4 miles north of Reagan, NW 1/4, Sec. 19, T7S, R6E | 
| Date Collected | 1978-06-21 | 
| Habitat | Spring Creek | 
| Container | Flora of Oklahoma | 
| Project | US and Canada - Mass Digitization | 
| Remarks | ph 8.0; alkalinity 340.0 mg/l | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1e980b74-ebd5-4e5d-878f-49da6718b58d | 
| Harvard University Herbaria Barcode | 01564020 | 
| Herbarium | GH | 
| Previous ownership | [ex] Herbarium of Boston State College Boston, Massachusetts; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton amplifolius Tuckerman | 
| Determined by | Hellquist, Carl Barre | 
| Date Determined | 1988 | 
| Determination Remarks |  [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |