| Classification | Cyperaceae: Carex |
| Harvard University Herbaria Barcode(s) | 00027121 |
| Type Status | Neotype |
| Collector | |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Berkshire County: Williamstown |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/069208e4-2244-4511-8801-a785ebc015eb |
| Harvard University Herbaria Barcode | 00027121 |
| Herbarium | GH |
| Family | Cyperaceae |
| Determination | Carex haydenii Dewey |
| Determined by | K. K. Mackenzie |
| Determination Remarks | [is Current name] |
| Family | Cyperaceae |
| Type Status | Neotype |
| Neotype of | Carex acuta var. erecta Dewey |
| Verified by | L. A. Standley |
| Date Determined | 1986 |
| Determination Remarks | Mackenzie cites “Type from western Massachusetts probably.” No specimen is cited in Dewey's protologue. Standley annotated the specimen as Holotype. |
| Taxon Reference | (for Carex acuta var. erecta Dewey) Amer. J. Sci. Arts 1826. 10: 265. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
