| Classification | Cyperaceae: Carex | 
| Harvard University Herbaria Barcode(s) | 00260203 | 
| Collector | M. L. Fernald & B. H. Long | 
| Collector number | 13042 | 
| Country | United States of America | 
| State | Maine | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maine: Cumberland County: Baldwin | 
| Locality | Valley of the Saco River | 
| Date Collected | 1916-08-28 | 
| Habitat | Recently inundated swale | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e75469c8-56a2-4ba4-98cc-c4c3d489ed6e | 
| Harvard University Herbaria Barcode | 00260203 | 
| Herbarium | NEBC | 
| Family | Cyperaceae | 
| Determination | Carex haydenii Dewey | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |