| Classification | Polygonaceae: Polygonum |
| Barcode(s) | 00552270 |
| Collector | W. W. Merrill |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Watertown |
| Locality | Watertown |
| Date Collected | 1849 [1849] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6cbd4ad1-c466-4ca6-a4e4-78ab749b64d4 |
| Harvard University Herbaria Barcode | 00552270 |
| Herbarium | NEBC |
| Family | Polygonaceae |
| Determination | Polygonum pensylvanicum Linnaeus |
| Determination Remarks | [filed under] [current name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
