Calflora Taxon Report
Centaurea virgata  Lam.  ssp. squarrosa  (Boiss.) Gugler.
Squarrose knapweed
photo on Calflora
2013 Gerald Carr
photo on Calflora
2013 Gerald Carr
photo on Calflora
2013 Gerald Carr
Centaurea virgata ssp. squarrosa is a perennial herb that is not native to California.
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
DJJJASONAFMM

Bloom Period
Parent: Centaurea virgata
Genus: Centaurea
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot
Habitat: disturbed

Communities: weed, characteristic of disturbed places

Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSCentaurea squarrosa
PLANTSCentaurea triumfettii
PLANTSCentaurea variegata
PLANTSCentaurea virgata var. squarrosa
External links:

[Wikipedia] Origins: Centaurea virgata is a species of Centaurea. It is native to Western Asia. The subspecies C. virgata subsp. squarrosa is known as squarrose knapweed. (link added by Jessica Johnston)

[NPS] Introduction: Squarrose knapweed (Centaurea virgata ssp. squarrosa) is present in Utah, Nevada, California, Oregon, Wisconsin, and Michigan. How it was introduced to North America is unknown. (link added by Jessica Johnston)

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

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