| Classification | Polygonaceae: Persicaria |
| Classification 1 | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00552042 |
| Collector | E. S. Hoar |
| 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 | Conc. River |
| Date Collected | 1858-08-19 [Aug. 19, 1858] |
| Habitat | Shallow water |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/00b0cc83-348a-4aeb-806c-767d90150a2b |
| Harvard University Herbaria Barcode | 00552042 |
| Herbarium | NEBC |
| Family | Polygonaceae |
| Determination | Persicaria hydropiperoides (Michaux) Small |
| Determination Remarks | [filed under] [current name] |
| Family | Polygonaceae |
| Determination | Polygonum hydropiperoides Michaux |
| Determined by | Park, Chong-wook |
| Date Determined | 1990-06-** |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
