Ageratina adenophora
Crofton Weed
As recorded: Ageratina adenophora (Spreng.) R.M.King & H.Rob.
Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae
- Collected by
- Bonsey, E.; Iltis, H.H.; Iltis, M.E. Bonsey →H.H. Iltis →M.G. Iltis →
- Collector number
- H-462
- Date
- August 5, 1967
- Locality
- Between Waikamoi & Haipulaena Gulch Along Kula Pipe Line, 3-4 mi due E of Olinda
- Island
- Maui
- Region
- Hawaii, United States
- Elevation
- 1,320 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
Collected the same day
On August 5, 1967, Bonsey, E.; Iltis, H.H.; Iltis, M. also collected 24+ other specimens.
Asplenium acuminatum
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Asplenium acuminatum
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Asplenium acuminatum
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Asplenium lobulatum
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Asplenium normale
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Asplenium sphenotomum
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Athyrium microphyllum
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Carex alligata
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Carex alligata
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Clermontia arborescens
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Cyanea aculeatiflora
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Dryopteris rubiginosa
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Dryopteris rubiginosa
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Dryopteris rubiginosa
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Dryopteris wallichiana
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Dryopteris wallichiana
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Dubautia scabra
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Elaphoglossum paleaceum
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Juncus bufonius
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Juncus polyanthemus
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Kadua affinis
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Kadua axillaris
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Pilea peploides
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Rubus hawaiensis
Botany
Ageratina adenophora observed alive in Hawaiʻi
This specimen was collected in 1967. Since 2000, iNaturalist observers have recorded 111 research-grade sightings in the wild, most recently on 2026-08-07.
2026-08-07
Hawaii, US
(c) Daniel Ward, some rights reserved (CC BY-NC)
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)
2026-03-25
Maui County, HI, USA
(c) Daniel Ward, some rights reserved (CC BY-NC)
2026-03-12
Haleakalā National Park, Kula, HI, US
(c) lkfreidenburg, some rights reserved (CC BY-NC)
2026-03-03
Kula, HI 96790, USA
(c) Tyler Mode, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Ageratina adenophora. BISH 36194. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956369289. Accessed via explore.bishopmuseum.org/specimens/bish/36194.
Record sources
- GBIF occurrence 5956369289 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026