Taxon  Report   9059 
Centaurea jacea  L.
Brown knapweed,  Brownray knapweed
Centaurea jacea
© 2005 Dr. Amadej Trnkoczy
Click on a photo to see it bigger.
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 TJM2 + PLANTS
Alternate Names:
(according to)

TJM2: Centaurea ×moncktonii
TJM2: Centaurea ×pratensis
More information about  Centaurea jacea
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


Search (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:   (Accessed: Feb 19, 2018).

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