Canada Thistle (Cirsium arvense (L.) Scop.)

Other Names:  

Life Cycle:  Perennial

Description:  Grows in patches due to horizontal rhizomes.  Flowers do not have spines or prickles, unlike bull or musk thistle.  Stems are also spineless.

Additional photos

Herbicide Options: Response of Pasture Weeds to Herbicides and Mowing - AGR 207