| Classification | Polygonaceae: Rumex | 
| Harvard University Herbaria Barcode(s) | 00749957 | 
| Collector | C. H. Knowlton | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Cambridge | 
| Locality | Cambridge | 
| Date Collected | 1907-06-29 [June 29, 1907] | 
| Habitat | Dry field, clay | 
| Project | New England Vascular Plants TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f265c63a-d8c8-4cc8-9cc6-6a4b5a2bb032 | 
| Harvard University Herbaria Barcode | 00749957 | 
| Herbarium | NEBC | 
| Family | Polygonaceae | 
| Determination | Rumex crispus Linnaeus | 
| Determination Remarks | [filed under] [current name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |