Cirsium arvense

Commonly known as Canada thistle

Distribution Map

Weed Classification

Noxious Weed Class Class C: Species are widespread throughout the state. Management decisions should be made at a local level based on the feasibility of control and level of infestation.
Weed Type forb
Found in rangeland
Duration perennial
Juice not milky
Spines, Thorns, and Prickles leaves
Growth Habit at Maturity spreading
Leaf Arrangement alternate Show example photo
Leaf Type not lobed Show example photo
Presence of Leaf Tendils absent Show example photo
Leaf Succulence not succulent
Stem Shape round
Flower Color blue-purple,white-cream
Flower Symmetry symmetric Show example photo

Image Gallery