Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Ulva lactuca
Broadleaf Sea Lettuce
As recorded: Ulva lactuca L.
Plantae › Chlorophyta › Ulvophyceae › Ulvales › Ulvaceae
- Collected by
- Tsuda, R.T.
- Collector number
- 597
- Date
- December 6, 1963
- Locality
- NE side of island
- Island
- Laysan
- Region
- Hawaii, United States
- Identified by
- (Nom. rev.) Tsuda, R.T.
- Record type
- Preserved specimen
Collected the same day
On December 6, 1963, Tsuda, R.T. also collected 24+ other specimens.
Ulva lactuca observed alive in Hawaiʻi
This specimen was collected in 1963. Since 2000, iNaturalist observers have recorded 60 research-grade sightings in the wild, most recently on 2026-10-06.

2026-10-06
L. Honoapi'ilani Rd./Pi`ina Pl., Napili-Honokowai, HI 96761, USA
(c) higgmaso, some rights reserved (CC BY-NC)

2026-10-06
Maui County, US-HI, US
(c) higgmaso, some rights reserved (CC BY-NC)

2026-09-15
Lahaina Civic Center, Lahaina, HI 96761, USA
(c) higgmaso, some rights reserved (CC BY-NC)

2026-09-15
L. Honoapi'ilani Rd./Pi`ina Pl., Napili-Honokowai, HI 96761, USA
(c) higgmaso, some rights reserved (CC BY-NC)

2026-09-01
Kalakaua Ave, Honolulu, HI, US
(c) jordan loftin, some rights reserved (CC BY-NC)

2026-09-01
Waialua, HI, US
(c) Salem De La Luna, some rights reserved (CC BY)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Ulva lactuca. BISH 697117. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956527432. Accessed via explore.bishopmuseum.org/specimens/bish/697117.
Record sources
- GBIF occurrence 5956527432 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
