Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Sargassum polyphyllum
As recorded: Sargassum polyphyllum J.Agardh, 1848
Chromista › Ochrophyta › Phaeophyceae › Fucales › Sargassaceae
- Collected by
- Mihata, J.R.
- Collector number
- 55
- Locality
- Waimanalo Beach Park
- Island
- Oʻahu
- Region
- Hawaii, United States
- Coordinates
- 21.3333, -157.6833
- Record type
- Preserved specimen
Where it was collected
Still here: Sargassum polyphyllum observed near this locality
Since 2000, iNaturalist observers have recorded 25 research-grade sightings in the wild within 25 km, most recently on 2026-10-08.

2026-10-08
Kalakaua Ave, Honolulu, HI, US
(c) jordan loftin, some rights reserved (CC BY-NC)

2026-10-07
N Kalaheo Ave, Kailua, HI, US
(c) anemoneme, some rights reserved (CC BY-NC)

2025-12-15
Mamala Bay, Honolulu, HI, US
(c) William Wimley, some rights reserved (CC BY-NC)

2025-12-06
Diamond Head / Kapahulu / St. Louis Heights, Honolulu, HI, USA
(c) belyykit, some rights reserved (CC BY-NC)

2025-11-08
Waikiki, Honolulu, HI 96815, USA
no rights reserved

2025-06-28
Diamond Head Rd + Diamond Head Lighthouse, Honolulu, HI 96815, USA
no rights reserved
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Sargassum polyphyllum. BISH 524076. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956621075. Accessed via explore.bishopmuseum.org/specimens/bish/524076.
Record sources
- GBIF occurrence 5956621075 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
