| Classification | Potamogetonaceae: Potamogeton | 
| Barcode(s) | 00022676 | 
| Type Status | Isotype | 
| Collector | E. Faxon | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Essex County | 
| Locality | Wenham Pond [Beverly & Wenham] | 
| Date Collected | 1882-09-05 | 
| Remarks | = Potamogeton gramineus L. | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/905f3289-6e66-4a41-80af-38e33b89d523 | 
| Harvard University Herbaria Barcode | 00022676 | 
| Herbarium | GH | 
| Previous ownership | Ex Herb. E. & C. Faxon | 
| Family | Potamogetonaceae | 
| Type Status |  Isotype | 
| Isotype of |  Potamogeton ×subnitens Hagström | 
| Determination Remarks |  [filed under] | 
| Taxon Reference | (for  Potamogeton ×subnitens Hagström) Kongl. Svenska Vetensk. Acad. Handl. 1916. 55(5): 201. | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton ×nitens Weber | 
| Determined by | Kaplan, Zdenek | 
| Date Determined | 2012 | 
| Determination Remarks |  [current name] | 
| Annotation Text | (P. gramineus L. x P. perfoliatus L.) | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton ×subnitens Hagström | 
| Determined by | Ogden, Eugene Cecil | 
| Date Determined | 1942 | 
| Annotation Text | Isotype | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton ×subnitens Hagström | 
| Determined by | [M. L. Fernald (scripsit) annotation on sheet, W. T. Kittredge, 2012] | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton perfoliatus Linnaeus | 
| Determination Remarks |  [label name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |