| Name | Cyperus ×weatherbianus Fernald |
| Authorship | Fernald |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Cyperus Linnaeus |
| Citation | 1918 Rhodora 20(239): 190 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Cyperus ×weatherbianus Fernald |
| Identification made in | [no date] (3), 2015 (1) |