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Taxon  Report  
Senecio linearifolius  A. Rich.
Australian fireweed
Senecio linearifolius is an annual or perennial herb that is not native to California.
There is a high risk of this plant becoming invasive in California according to Cal-IPC.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
~122 records in California
redone or more occurrences
within a 7.5-minute quadrangle
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Bloom Period
Subspecies and Varieties:
Genus: Senecio
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: Do not eat any part of this plant.
Name Status:
Accepted by PLANTS + POWO
Information about  Senecio linearifolius from other sources
USDA PLANTS Profile (SELI)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

[Wikipedia] Taxonomy: Senecio linearifolius was first formally described by Achille Richard and the description was published in Voyage de Decouvertes de l'Astrolabe. Botanique.[5][6] The specific epithet (linearifolius) means linear leaved.[7] (link added by Mary Ann Machi)


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: 07/19/2025).