| SNo. | Scientific Name | Locality | Habitat | Basis of Record | Description | Recorded By | Record Number | Island | Source | Date |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Cyperus sesquiflorus subsp. sesquiflorus | University of Hilo | Occasionally naturalized in Hilo & Puna lawns. | Preserved_Specimen | Stemmermann, R.L. | 7175 | Hawaii | BISH | 1987-07-06 | |
| 2 | Cyperus sesquiflorus subsp. sesquiflorus | Lupehu | Naturalized and common in pastures. | Preserved_Specimen | Heads white. | Oppenheimer, H.L. | 110719 | Molokai | BISH | 2007-11-07 |
| 3 | Cyperus sesquiflorus subsp. sesquiflorus | Hio, University of Hawaii at Hilo Campus, edge of volleyball court | Mowed lawns, moist, sunny areas. | Preserved_Specimen | Common, flower heads white with greenish keels. | Faccenda, K. | 3587 | Hawaii | BISH | 2024-07-09 |
| 4 | Cyperus sesquiflorus subsp. sesquiflorus | Hilo; Veterans Cemetery | Occasional in lawn. | Preserved_Specimen | Nagata, K.M. | 4430 | Hawaii | BISH | 1996-07-23 | |
| 5 | Cyperus sesquiflorus subsp. sesquiflorus | Hilo, Lahi Street near Waianuenue Street. | Weed in lawn. | Preserved_Specimen | Common, flower heads white. | Faccenda, K. | 3575 | Hawaii | BISH | 2024-07-07 |