Yellow Starthistle

Centaurea solstitialis

 Yellow star thistle is a top priority weed for treatment. This plant is a member of the knapweed family. It has sharp spines under the bright yellow flower. This plant can cause chewing disease in horses. 

Yellow star thistle is a top priority weed for treatment. This plant is a member of the knapweed family. It has sharp spines under the bright yellow flower. This plant can cause chewing disease in horses. 

Please visit NWBC for more information on this weed.