| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Harvard University Herbaria Barcode(s) | 00736113 |
| Collector | M. L. Fernald & B. H. Long |
| Collector number | 16766 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts |
| Locality | Barnstable Town |
| Date Collected | 1918-09-04 [September 4, 1918] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0a2afac5-8a5a-4ee7-b444-9c4984979894 |
| Harvard University Herbaria Barcode | 00736113 |
| Herbarium | NEBC |
| Family | Polygonaceae |
| Determination | Polygonum hydropiperoides Michaux |
| Determined by | Park, Chong-wook |
| Date Determined | 1990-06-** |
| Determination Remarks | [current name] |
| Family | Polygonaceae |
| Determination | Persicaria hydropiperoides (Michaux) Small |
| Determination Remarks | [filed under] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
