Ageratina adenophora
Crofton Weed
As recorded: Ageratina adenophora (Spreng.) R.M.King & H.Rob.
Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae
- Collected by
- Agee, H.P.
- Collector number
- D43
- Date
- May 14, 1923
- Locality
- Ulupalakua, E Maui, Makawao District
- Island
- Maui
- Region
- Hawaii, United States
- Coordinates
- 20.6455, -156.3986 ± 4,084 m
- 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
Where it was collected
Collected the same day
On May 14, 1923, Agee, H.P. also collected 1 other specimen.
Still here: Ageratina adenophora observed near this locality
This specimen was collected in 1923. Since 2000, iNaturalist observers have recorded 58 research-grade sightings in the wild within 25 km, most recently on 2026-04-20.
2026-04-20
Sliding Sands Trail, Kula, HI, US
(c) annathn, some rights reserved (CC BY-NC)
2026-04-09
Kula, HI 96790, USA
(c) Mike Burnett, some rights reserved (CC BY)
2026-03-03
Kula, HI 96790, USA
(c) Tyler Mode, some rights reserved (CC BY-NC)
2026-02-17
Halemauu Trail, Kula, HI, US
(c) Victor Rogers-Phillips, some rights reserved (CC BY-NC)
2025-11-16
Haleakala, Haleakala National Park, Maui County, US-HI, US
(c) liam_salemink, some rights reserved (CC BY-NC)
2025-11-13
Maui County, HI, USA
(c) NEcology, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Ageratina adenophora. BISH 75211. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956191513. Accessed via explore.bishopmuseum.org/specimens/bish/75211.
Record sources
- GBIF occurrence 5956191513 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026