Taxon  Report   1848 
Centaurea diluta  Aiton
North African knapweed,  Star thistle
Centaurea diluta
© 2015 Ron Vanderhoff
Click on a photo to see it bigger.
Centaurea diluta
© 2015 Ron Vanderhoff
Centaurea diluta
© 2015 Ron Vanderhoff
Centaurea diluta, a dicot, is an annual herb that is not native to California; it was introduced from elsewhere and naturalized in the wild. There is a high risk of this plant becoming invasive in California according to Cal-IPC.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Centaurea diluta
© 2013 Ron Vanderhoff
Genus: Centaurea
Name Status:
Accepted by TJM2 + PLANTS + JM93
More information about  Centaurea diluta
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

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: Mar 24, 2018).

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