Calflora
Taxon  Report   11498    
Centaurea virgata  Lam.  ssp. squarrosa  (Boiss.) Gugler.
Squarrose knapweed
Centaurea virgata ssp. squarrosa
© 2002 Molly Elizabeth Bagley
Photos from
CalPhotos / Calflora
Centaurea virgata ssp. squarrosa
© 2013 Gerald Carr
Centaurea virgata ssp. squarrosa
© 2001 CDFA
Centaurea virgata ssp. squarrosa, a dicot, is a perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild. Cal-IPC rating: Moderate

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Centaurea virgata ssp. squarrosa
© 2013 Gerald Carr
Family: ASTERACEAE  
Genus: Centaurea
Parent: Centaurea virgata
Communities: weed, characteristic of disturbed places

Habitat: disturbed

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Centaurea triumfettii
PLANTS: Centaurea variegata
PLANTS: Centaurea virgata var. squarrosa
. . .
More information about  Centaurea virgata ssp. squarrosa
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (CEVIS2)

Search efloras.org (Flora of North America)

website references from Google


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Dec 18, 2018).