| Name | Carex retroflexa Muhlenberg ex Willdenow |
| Authorship | Muhlenberg ex Willdenow |
| Rank | Species |
| Placed in | Carex Linnaeus |
| GUID | urn:lsid:ipni.org:names:46979-2 |
| Holdings | 165 Specimens held in the Harvard University Herbaria identified as Carex retroflexa Muhlenberg ex Willdenow |
| Identification made in | [no date] (163), 2005 (1), 2019 (1) |