Sonchus asper
prickly sowthistle
Photo: (c) Michelle W. （鍾偉瑋）, some rights reserved (CC BY), uploaded by Michelle W. （鍾偉瑋） (iNaturalist)
6
Bishop specimens
0
Type specimens
1921
First collected
2015
Last collected
2026
Last seen alive in Hawaiʻi
In the Library
Bishop Museum publications whose pages name Sonchus asper, most mentions first.
2025
Imada, C.T., Faccenda, K., Thomas, M.K., Gallaher, T., Oppenhemier, H., Kennedy, B. & Kalei, A. (eds.) Hawaiian native & naturalized vascular plants checklist (2025 update). 780 pp. [published online 6 November 2025]· Contribution to the Hawaii Biological Survey · 1 page
2019
Hawaiian naturalized vascular plants checklist (February 2019 update)Imada, C. · Contribution to the Hawaii Biological Survey · 1 page
2014
Biological survey on a 10-acre parcel and adjacent areas, proposed land acquisition, Kahuluui, Maui, HawaiiPreston, D. & Imada, C. · Contribution to the Hawaii Biological Survey · 1 page
Two centuries of collecting
The oldest Bishop specimen was collected in 1921 by Elmer, A.D.E. (Borneo).
From the collection
Alive today
10 research-grade iNaturalist sightings in the wild in Hawaiʻi since 2000. Most recent first.
2026-01-12
Kailua Kona, HI, US
(c) Sam Rickert, some rights reserved (CC BY-NC)
2025-04-14
Hosmer Nature Trail, Kula, HI, US
(c) auden hedera, some rights reserved (CC BY-NC)
2024-11-18
Kipuka Puʻu Huluhulu Trail, Holualoa, HI, US
(c) Nick T., some rights reserved (CC BY-SA)
2024-04-02
Maui, Kula, HI, US
(c) Liam Ehrman, some rights reserved (CC BY-NC)
2023-09-21
Maui County, HI, USA
(c) Kevin Faccenda, some rights reserved (CC BY)
2023-07-28
Kīlauea, Captain Cook, HI, US
(c) Travis Castle, some rights reserved (CC BY-NC)
2022-10-25
Maui County, HI, USA
(c) Kevin Faccenda, some rights reserved (CC BY)
2022-08-15
Hawaii County, HI, USA
(c) Kevin Faccenda, some rights reserved (CC BY)