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Purple Starthistle

Centaurea calcitrapa

Family Name:

Asteraceae

Class: A
Other Names:  
 Why is it a noxious weed?

Similar to yellow starthistle, this is an aggressive Centaurea, which is a major problem on annual rangelands in the San Francisco Bay area.

More Information:

 

 

 

Visit Washington State Noxious Weed Control Board Here

Washington State Weeds