| Name | Carex brunnescens var. sphaerostachya (Tuckerman) Kükenthal |
| Authorship | (Tuckerman) Kükenthal |
| Rank | Variety |
| Placed in | Carex brunnescens (Persoon) Poiret |
| GUID | urn:lsid:ipni.org:names:45901-2 |
| Holdings | 210 Specimens held in the Harvard University Herbaria identified as Carex brunnescens var. sphaerostachya (Tuckerman) Kükenthal |
| Identification made in | [no date] (210) |