| Name | Carex rostrata var. ambigens Fernald |
| Authorship | Fernald |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex rostrata Stokes |
| GUID | urn:lsid:ipni.org:names:47018-2 |
| Citation | 1901 Rhodora 3: 51 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Carex rostrata var. ambigens Fernald |
| Identification made in | [no date] (2) |