
Cyperus trachysanthos
As recorded: Cyperus trachysanthos Hook. & Arn.
Plantae › Tracheophyta › Liliopsida › Poales › Cyperaceae
- Collected by
- Whitney, L.D.
- Collector number
- Collector Number: 4038
- Date
- 1936
- Locality
- Ewa Coral Plain
- Island
- Oʻahu
- Region
- Hawaii, United States
- Identified by
- O'Neill, H.
- Record type
- Preserved specimen
Cyperus trachysanthos observed alive in Hawaiʻi
This specimen was collected in 1936. Since 2000, iNaturalist observers have recorded 7 research-grade sightings in the wild, most recently on 2026-08-10.

2026-08-10
Hawaii, US
(c) Ean Schiffman, some rights reserved (CC BY-NC)

2020-02-29
Kauai County, US-HI, US
(c) Donna Pomeroy, some rights reserved (CC BY-NC)

2018-11-05
Hawaii, US
(c) Neal Evenhuis, some rights reserved (CC BY-NC)

2018-11-05
Hawaii, US
(c) Neal Evenhuis, some rights reserved (CC BY-NC)

2018-10-04
Hawaii, US
(c) Kenneth R. Wood (NTBG), some rights reserved (CC BY-NC)

2013-07-30
Maui County, US-HI, US
(c) draculavampira, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Cyperus trachysanthos. BISH 639086. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956446378. Accessed via explore.bishopmuseum.org/specimens/bish/639086.
Record sources
- GBIF occurrence 5956446378 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
