Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Erigeron canadensis
horseweed
As recorded: Erigeron canadensis var. pusillus (Nutt.) B.Boivin
Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae
- Collected by
- Newell, C.L.
- Collector number
- 456
- Date
- August 19, 1966
- Locality
- Drive down Crater Rim Rd ca. 15 meters towards Volcano Observatory from the short strip of road connecting Crater R Rim Rd & Kona-Hilo Highway. Plant was ca. 40 m to right of Rd from 35 MPH sign
- Island
- Hawaiʻi Island
- Region
- Hawaii, United States
- Elevation
- 1,340 m
- Identified by
- Faccenda, K.
- Record type
- Preserved specimen
Collected the same day
On August 19, 1966, Newell, C.L. also collected 19 other specimens.
Erigeron canadensis observed alive in Hawaiʻi
This specimen was collected in 1966. Since 2000, iNaturalist observers have recorded 101 research-grade sightings in the wild, most recently on 2026-09-09.

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

2026-09-05
Kinoole St, Hilo, HI, US
(c) Julien Carley-Windeler, some rights reserved (CC BY-NC)

2026-08-09
Kaumalumalu Dr, Hōlualoa, HI, US
(c) deefulton, some rights reserved (CC BY-NC)

2026-07-02
Oʻahu, Nānākuli, HI, US
(c) ehulaniii, some rights reserved (CC BY-NC)

2026-07-01
Puʻuhonua o Hōnaunau National Historical Park, Hōnaunau-Nāpōʻopoʻo, HI, US
(c) ka_y_ak, some rights reserved (CC BY-NC)

2026-06-27
Manowaiopae Homestead Rd, Hilo, HI, US
(c) k2panman, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Erigeron canadensis. BISH 20983. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956574641. Accessed via explore.bishopmuseum.org/specimens/bish/20983.
Record sources
- GBIF occurrence 5956574641 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
