Calflora Taxon Report
Centaurea jacea  L.  ssp. nigra  (L.) Bonnier & Layens
Black knapweed
Centaurea jacea ssp. nigra 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 jacea
Genus: Centaurea
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Name Status:
Accepted by JEF
Alternate Names:
JEFCentaurea nigra
POWOCentaurea nigra
Information about Centaurea jacea ssp. nigra from other sources
Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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