| Classification | Cyperaceae: Carex | 
| Barcode(s) | 00232948 | 
| Collector | F. C. Seymour | 
| Collector number | 1449 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Dukes County: Tisbury | 
| Locality | Marthas Vineyard, near Tashmoo Lake | 
| Date Collected | 1917-06-16 | 
| Habitat | Swamp | 
| Remarks | Perigynia very wide, this sheet may be an intermediate with Carex atlantica ssp. atlantica, det. A. A. Reznicek, 1986 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/400be869-64cf-444e-941e-c74ef554a19d | 
| Harvard University Herbaria Barcode | 00232948 | 
| Herbarium | NEBC | 
| Family | Cyperaceae | 
| Determination |  Carex echinata subsp. echinata  | 
| Determined by | A. A. Reznicek | 
| Date Determined | 1986 | 
| Determination Remarks |  [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |