Island bristleweed, Island hazardia, Northern island haplopappus, Northern islands hazardia
2014 Steve Matson 2014 Steve Matson 2014 Steve Matson 2013 James Gonsman 2022 Kyle Suchy 2015 James Gonsman 2020 David Greenberger 2022 Kyle Suchy 2022 Kyle Suchy 2022 Kyle Suchy 2014 Roy West
Hazardia detonsa is a shrub that is native to California, and endemic (limited) to California.
also called Haplopappus detonsus
California Rare Plant Rank: 4.3 (limited distribution).
[Wikipedia] Threat from sheep: The main threat to this species on Santa Cruz Island was the presence of feral Santa Cruz sheep. The sheep have been removed, allowing the plant to begin its recovery there. (link added by Mary Ann Machi)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 05/12/2025).
one or more occurrences