| Name | Carex sonomensis Stacey |
| Authorship | Stacey |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex Linnaeus |
| GUID | urn:lsid:ipni.org:names:302302-1 |
| Citation | 1937 Leafl. W. Bot. 2: 63 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Carex sonomensis Stacey |
| Identification made in | [no date] (1), 2010 (1) |