Cyperus alternifolius
Umbrella Papyrus
As recorded: Cyperus alternifolius subsp. flabelliformis Kük.
Plantae › Tracheophyta › Liliopsida › Poales › Cyperaceae
- Collected by
- Krauss, N.L.H.
- Collector number
- s.n.
- Date
- January 18, 1943
- Locality
- Honolulu
- Island
- Oʻahu
- Region
- Hawaii, United States
- Coordinates
- 21.3000, -157.8500
- Identified by
- (Nom. rev.) Faccenda, K.
- Record type
- Preserved specimen
Where it was collected
Collected the same day
On January 18, 1943, Krauss, N.L.H. also collected 2 other specimens.
Still here: Cyperus alternifolius observed near this locality
This specimen was collected in 1943. Since 2000, iNaturalist observers have recorded 113 research-grade sightings in the wild within 25 km, most recently on 2026-10-16.

2026-10-16
Aloha ʻOe Dr, Kailua, HI, US
(c) ashoki, some rights reserved (CC BY-NC)

2026-08-10
Ala Moana Blvd, Honolulu, HI, US
(c) Julien Carley-Windeler, some rights reserved (CC BY-NC)

2026-08-05
Farrington Hwy + Makamaka Pl, Waipahu, HI 96797, USA
(c) chocktm, some rights reserved (CC BY-NC)

2026-07-26
Kaneohe
(c) Oliver, some rights reserved (CC BY-NC)

2026-07-22
Honolulu, HI, US
(c) atcgnyc, some rights reserved (CC BY-NC)

2026-07-22
Makiki Valley Trail, Honolulu, HI, US
(c) atcgnyc, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Cyperus alternifolius. BISH 648164. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956560096. Accessed via explore.bishopmuseum.org/specimens/bish/648164.
Record sources
- GBIF occurrence 5956560096 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
