
Erigeron bonariensis
Flax-leaved Horseweed
As recorded: Conyza bonariensis (L.) Cronquist
Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae
- Collected by
- R.Inafuka
- Date
- May 1930
- Island
- Oʻahu
- Region
- Honolulu, Hawai`i, United States
- Identified by
- D.R.Herbst, S.H.Sohmer & W.L.WagnerS.H. D.R.Herbst →Seymour H. Sohmer →W.L.Wagner →
- Record type
- Preserved specimen
Erigeron bonariensis observed alive in Hawaiʻi
This specimen was collected in 1930. Since 2000, iNaturalist observers have recorded 206 research-grade sightings in the wild, most recently on 2026-09-30.

2026-09-30
Maile Way + East-West Rd, Honolulu, HI 96822, USA
no rights reserved

2026-09-21
Hawaii, US
(c) Kyle Klotz, some rights reserved (CC BY-NC)

2026-09-09
Hawaii Kai, Honolulu, HI, USA
no rights reserved

2026-07-26
Kīlauea Iki Trail, Pahoa, HI, US
(c) atcgnyc, some rights reserved (CC BY-NC)

2026-07-26
Nuuanu - Punchbowl, Honolulu, HI, USA
no rights reserved

2026-07-25
Honokaa, HI, US
(c) Jason Flor Flores, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Erigeron bonariensis. BISH 75130.2. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 36132381. Accessed via explore.bishopmuseum.org/specimens/bish/75130.2.
Record sources
- GBIF occurrence 36132381 ↗
- Data license: CC0
- Last harvested October 26, 2026
