| Name | Carex umbellata var. brevirostris Boott |
| Authorship | Boott |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex umbellata Schkuhr ex Willdenow |
| GUID | urn:lsid:ipni.org:names:47330-2 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Carex umbellata var. brevirostris Boott |
| Identification made in | [no date] (5) |