Share

Thistle, Canada

Cirsium arvense

Canada Thistle

Synonyms

Creeping Thistle, Small-flowered Thistle

ID Characteristics

Life cycle: Perennial
Growth Habit: Erect
Propagation: Seed and rhizomes
Leaf Margin: Wavy with spines
Leaf Hairs: Lower leaf surface may have hairs
Leaf Structure: Lanceolate with lobes
Leaf Arrangement: Alternate
Root Type: Extensive rhizomes
Flower Color: Pink to purple

Multimedia

Video

Similar Species

Herbicidal Control Options

  • Preemergence: Selective control option not available
  • Post Emergence: 2,4-D, Carfentrazone, Chlorsulfuron, Clopyralid, Dicamba, Mecoprop-p, Mesotrione, Quinclorac, Triclopyr

Please note: one or more of these active ingredients may exist in combination-type brand name products. Any material used for herbicidal control of any plant may vary in efficacy. Please read the full disclaimer on herbicide usage.