Calflora
Taxon  Report   9059    
Centaurea jacea  L.
Brown knapweed,  Brownray knapweed
Centaurea jacea
© 2008 Zoya Akulova
Photos from
CalPhotos / Calflora
Centaurea jacea
© 2005 Dr. Amadej Trnkoczy
Centaurea jacea
© 2008 Keir Morse
Centaurea jacea, a dicot, is a perennial herb that is not native to California.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Centaurea jacea
© 2005 Dr. Amadej Trnkoczy
Family: ASTERACEAE  
Genus: Centaurea
Subspecies and Varieties:
Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Centaurea ×moncktonii
ICPN: Centaurea ×pratensis
More information about  Centaurea jacea
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (CEJA)

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: Nov 19, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.