| Classification | Cyperaceae: Eleocharis | 
| Harvard University Herbaria Barcode(s) | 00717850 | 
| 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: Carlisle | 
| Locality | Carlisle, Tophet swamp | 
| Date Collected | 1902-09-06 [Sept. 6, 1902] | 
| Project | New England Vascular Plants TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/062f7299-0edd-4c96-8265-ae309a5d84ca | 
| Harvard University Herbaria Barcode | 00717850 | 
| Herbarium | NEBC | 
| Family | Cyperaceae | 
| Determination | Eleocharis tuberculosa f. retrorsa Svenson | 
| Determination Remarks | [filed under] [current name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |