Santa Monica Mountains National Recreation Area

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Yellow Star Thistle *
Centaurea solstitialis

Family: Asteraceae (SUNFLOWER).
Other common names: Barnaby's thistle.
Generic common name: KNAPWEED, STAR-THISTLE.

Westlake Blvd. disturbed road margin: chaparral, Sept 2004.

Characteristics: Non-Native, Yellow, Medium, Solitary, Simple, Herbaceous, Annual, Late Spring, Summer.

Note: Invasive exotic. 		Thumbnail Picture of Centaurea solstitialis




Detailed Picture 1 of Centaurea solstitialis


Detailed Picture 2 of Centaurea solstitialis


Detailed Picture 3 of Centaurea solstitialis




Detailed description from UCLA website (in PDF format)




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