| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Harvard University Herbaria Barcode(s) | 00736118 |
| Collector | M. L. Fernald & B. H. Long |
| Collector number | 16764 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Barnstable County: Brewster |
| Locality | Brewster |
| Date Collected | 1918-08-27 [August 27 1918] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a659ea80-a6ec-4489-9ce2-d60d5c1aa2ee |
| Harvard University Herbaria Barcode | 00736118 |
| 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 |
