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Taxon  Report  
Symphyotrichum defoliatum  (Parish) G. L. Nesom
San bernardino aster
Symphyotrichum defoliatum is a perennial herb (rhizomatous) that is native to California, and also found elsewhere in western North America.
also called Aster bernardinus
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
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
(228 records)
yellowone or more occurrences
within a 7.5-minute quadrangle
bloom graphic
Bloom Period
Genus: Symphyotrichum
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Toxicity: DERMATITIS

Wetlands: Occurs in wetlands

Habitat: freshwater-marsh

Communities: Freshwater Wetlands, Coastal Sage Scrub, Southern Oak Woodland

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
JEF + PLANTSAster bernardinus
JEFAster chilensis var. bernardinus
PLANTSAster defoliatus
PLANTSAster deserticola
PLANTSVirgulaster bernardinus
Information about  Symphyotrichum defoliatum from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (SYDE)

Photos on Calflora

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Google Images

Photos on iNaturalist

ID Tips on PlantID.net


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 02/04/2023).