Calflora
Taxon  Report   9059 
Centaurea jacea  L.
Brown knapweed,  Brownray knapweed
Centaurea jacea
© 2005 Dr. Amadej Trnkoczy
More 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
© 2008 Zoya Akulova
Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Name Status:
Accepted by JEF + PLANTS
Alternate Names:
(according to)

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

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: http://www.calflora.org/   (Accessed: Jul 16, 2018).

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