| Harvard University Herbaria Barcode(s) | 00872950 |
| Collector | H. D. Thoreau |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Concord |
| Locality | at Watts' ["Horatio C. Watts (1827-1899). Watts lived on the north side of Lexington Road near where the Cambridge Turnpike joins it. His potato field would have been between Lexington Road and the Turnpike." fide R. L. Angelo, Dec. 10, 2018] |
| Date Collected | 1856-08-14 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0e0397f1-ea82-4d46-b633-b328e1d7ff4d |
| Harvard University Herbaria Barcode | 00872950 |
| Herbarium | GH |
| Determination | Persicaria lapathifolia (Linnaeus) Delarbre |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2017 |
| Determination Remarks | [current name] |
| Determination | InQuestion Polygonum pensylvanicum Linnaeus |
| Subcollection | Thoreau Herbarium |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
