| Name | Carex foenea var. ferruginea A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex foenea Willdenow |
| GUID | urn:lsid:ipni.org:names:46206-2 |
| Citation | 1867 Manual [A. Gray] 5: 580 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Carex foenea var. ferruginea A. Gray |
| Identification made in | 1998 (1) |