| Name | Cyperus haspan var. flaccidissimus Kükenthal |
| Authorship | Kükenthal |
| Rank | Variety |
| Placed in | Cyperus haspan Linnaeus |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cyperus haspan var. flaccidissimus Kükenthal |
| Identification made in | [no date] (1) |