| Classification | Cyperaceae: Carex | 
| Harvard University Herbaria Barcode(s) | 00423150 | 
| Collector | J. M. Greenman | 
| Collector number | 116 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Norfolk County: Dedham | 
| Locality | Purgatory Swamp | 
| Date Collected | 1897-06-27 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/56af9b3e-fb03-4105-b3e0-6266917257c4 | 
| Harvard University Herbaria Barcode | 00423150 | 
| Herbarium | GH | 
| Family | Cyperaceae | 
| Determination | Carex abscondita Mackenzie | 
| Determined by | Naczi, Robert Francis Cox | 
| Date Determined | 2001 | 
| Determination Remarks | [filed under] [current name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |