| Classification | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00552215 |
| Collector | C. H. Knowlton |
| Country | United States of America |
| State | New Hampshire |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: New Hampshire: Grafton County: Haverhill |
| Locality | Haverhill |
| Date Collected | 1939-09-22 [Sept. 22, 1939] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/80339af4-babd-44b4-9ae6-28b61e6df87c |
| Harvard University Herbaria Barcode | 00552215 |
| Herbarium | NEBC |
| Family | Polygonaceae |
| Determination | Polygonum pensylvanicum Linnaeus |
| Determination Remarks | [is filed under name] [is Current name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
