Calflora Taxon Report
Centaurea squarrosa  Willd.

(not an active name)

Spreading thistle
Centaurea squarrosa is a perennial herb that is not native to California.
Cal-IPC rating: moderate
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
~204 records in California
redone or more occurrences
within a 7.5-minute quadrangle
Genus: Centaurea
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: disturbed

Communities: weed, characteristic of disturbed places

Name Status:

Alternate Names:
PLANTSCentaurea virgata ssp. squarrosa
Information about Centaurea squarrosa from other sources

USDA PLANTS Profile (CEVIS2)

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Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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