Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Cyperus polystachyos
Bunchy flat-sedge
As recorded: Cyperus polystachyos Rottb.
Plantae › Tracheophyta › Liliopsida › Poales › Cyperaceae
- Collected by
- Herbst, D.R.; Takeuchi, W.N.Derral R. Herbst →Wayne N. Takeuchi →
- Collector number
- 6340
- Date
- June 29, 1980
- Locality
- Sand Island. Growing in the safety zone, east end of runway #6-24
- Island
- Midway Atoll
- Region
- Hawaii, United States
- Identified by
- (Nom. rev.) Kennedy, B.
- Record type
- Preserved specimen
Collected the same day
On June 29, 1980, Herbst, D.R.; Takeuchi, W.N. also collected 24+ other specimens.
Bidens pilosa
Botany
Boerhavia repens
Botany
Casuarina equisetifolia
Botany
Cenchrus echinatus
Botany
Centaurium erythraea
Botany
Cordia sebestena
Botany
Crotalaria incana
Botany
Cyclospermum leptophyllum
Botany
Cynodon dactylon
Botany
Cyperus alternifolius
Botany
Cyperus rotundus
Botany
Digitaria ciliaris
Botany
Digitaria ciliaris
Botany
Digitaria insularis
Botany
Digitaria insularis
Botany
Eleusine indica
Botany
Eragrostis paupera
Botany
Erigeron bonariensis
Botany
Euphorbia heterophylla
Botany
Euphorbia hirta
Botany
Euphorbia hypericifolia
Botany
Euphorbia maculata
Botany
Euphorbia prostrata
Botany
Euploca procumbens
Botany
Cyperus polystachyos observed alive in Hawaiʻi
This specimen was collected in 1980. Since 2000, iNaturalist observers have recorded 507 research-grade sightings in the wild, most recently on 2026-10-22.
2026-10-22
Crater Rim Trail, Pahoa, HI, US
(c) Lucy Breda, some rights reserved (CC BY-NC)
2026-10-15
Crater Rim Trail, Pahoa, HI, US
no rights reserved
2026-10-15
Crater Rim Trail, Pahoa, HI, US
(c) swahn, some rights reserved (CC BY-NC)
2026-10-14
Kīlauea, Pahoa, HI, US
(c) birdbirdbird, some rights reserved (CC BY-NC)
2026-10-10
Hawaii, US
(c) Brendan Stogner, some rights reserved (CC BY-NC)
2026-10-06
Kamehameha Hwy W, Aiea, HI, US
(c) Julien Carley-Windeler, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Cyperus polystachyos. BISH 436275. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956587411. Accessed via explore.bishopmuseum.org/specimens/bish/436275.
Record sources
- GBIF occurrence 5956587411 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026