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Cyperus haspan

Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution

BISH 528497Botany

Cyperus haspan

Haspan Flatsedge

As recorded: Cyperus haspan L.

Plantae › Tracheophyta › Liliopsida › Poales › Cyperaceae

Collected by: Wagner, W.L.; Imada, C.; Takeuchi, W.C.T. Imada →Wayne N. Takeuchi →Warren L. Wagner Jr. →
Collector number: 5895
Date: March 9, 1988
Locality: East Maui, Kipahulu Valley, Midcamp Bog
Island: Maui
Region: Hawaii, United States
Elevation: 1,675 m
Identified by: (Nom. rev.) Imada, C.
Record type: Preserved specimen

108 Bishop specimens of Cyperus haspan · collected 1908–2024Species page ›

Cyperus haspan observed alive in Hawaiʻi

This specimen was collected in 1988. Since 2000, iNaturalist observers have recorded 34 research-grade sightings in the wild, most recently on 2026-10-24.

Cyperus haspan observed 2026-10-24

2026-10-24

Manoa, Honolulu, HI, USA

no rights reserved

Cyperus haspan observed 2026-07-05

2026-07-05

United States

(c) Tara Severns, some rights reserved (CC BY)

Cyperus haspan observed 2026-02-14

2026-02-14

Nāpau Trail, Pahoa, HI, US

(c) Jason Flor Flores, some rights reserved (CC BY-NC)

Cyperus haspan observed 2026-01-07

2026-01-07

Pāhoa, HI 96778, USA

(c) yerbasanta, some rights reserved (CC BY-NC)

Cyperus haspan observed 2025-08-25

2025-08-25

United States

(c) Tara Severns, some rights reserved (CC BY)

Cyperus haspan observed 2025-08-24

2025-08-24

United States

(c) Tara Severns, some rights reserved (CC BY)

Observations and photos from iNaturalist, shown only when openly licensed.

Cite this specimen

Cyperus haspan. BISH 528497. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956137324. Accessed via explore.bishopmuseum.org/specimens/bish/528497.

Record sources

GBIF occurrence 5956137324 ↗
Data license: CC_BY_NC_4_0
Last harvested October 26, 2026