| Name | Cyperus polystachyos Rottbøll |
| Authorship | Rottbøll |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Cyperus Linnaeus |
| Contains | Cyperus polystachyos var. texensis (Torrey) Fernald |
| GUID | urn:lsid:ipni.org:names:75004-2 |
| Holdings | 31 Specimens held in the Harvard University Herbaria identified as Cyperus polystachyos Rottbøll |
| Identification made in | [no date] (28), 1983 (1), 2017 (1), 2018 (1) |