| Name | Carex ×sullivantii Boott |
| Authorship | Boott |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex Linnaeus |
| Citation | 1842 Amer. J. Sci. Arts 42: 29 |
| Holdings | 19 Specimens held in the Harvard University Herbaria identified as Carex ×sullivantii Boott |
| Identification made in | [no date] (18), 1996 (1) |