Triumfetta semitriloba
Sacramento bur
As recorded: Triumfetta semitriloba Jacq.
Plantae › Tracheophyta › Magnoliopsida › Malvales › Malvaceae
- Collected by
- Wagner, W.L.; Imada, C.; Takeuchi, W.C.T. Imada →Wayne N. Takeuchi →Warren L. Wagner Jr. →
- Collector number
- 5830
- Date
- March 6, 1988
- Locality
- Wailuku District, W Maui Forest Reserve, 'Iao Valley, above lookout and parking lot along 'Iao Stream
- Island
- Maui
- Region
- Hawaii, United States
- Identified by
- Herbst, D.R.; Sohmer, S.H.; Wagner, W.L.Derral R. Herbst →Seymour H. Sohmer →Warren L. Wagner Jr. →
- Record type
- Preserved specimen
Collected the same day
On March 6, 1988, Wagner, W.L.; Imada, C.; Takeuchi, W. also collected 16 other specimens.
Triumfetta semitriloba observed alive in Hawaiʻi
This specimen was collected in 1988. Since 2000, iNaturalist observers have recorded 63 research-grade sightings in the wild, most recently on 2026-10-05.

2026-10-05
Hana, HI 96713, USA
(c) Craig Ontl, some rights reserved (CC BY-NC)

2026-09-08
Honolulu County, US-HI, US
(c) Brynn Fricke, some rights reserved (CC BY)

2026-06-03
Kailua Kona, HI, US
(c) Jason Flor Flores, some rights reserved (CC BY-NC)

2026-05-25
Waialua, HI 96791, USA
no rights reserved

2026-03-06
Waialua, HI 96791, USA
no rights reserved

2026-02-27
Waianae, HI 96792, USA
no rights reserved
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Triumfetta semitriloba. BISH 530218. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956449150. Accessed via explore.bishopmuseum.org/specimens/bish/530218.
Record sources
- GBIF occurrence 5956449150 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
