| Classification | Polygonaceae: Persicaria |
| Classification 1 | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00736124 |
| Collector | M. L. Fernald & B. H. Long |
| Collector number | 16765 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Barnstable County: Harwich |
| Locality | Harwich |
| Date Collected | 1918-08-30 [August 30 1918] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2aa4b82e-1c16-4a29-80e8-3ecb0c9f9a5b |
| Harvard University Herbaria Barcode | 00736124 |
| Herbarium | NEBC |
| Family | Polygonaceae |
| Determination | Persicaria hydropiperoides (Michaux) Small |
| Determination Remarks | [is filed under name] |
| Family | Polygonaceae |
| Determination | Polygonum hydropiperoides Michaux |
| Determined by | Park, Chong-wook |
| Date Determined | 1990-06-** |
| Determination Remarks | [is Current name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
