Home Identify by color Scientific name index Taxonomy index

Cirsium arvense

Common name(s): Canada thistle


Cirsium arvense
Cirsium arvense


Wildflower Information for Cirsium arvense
Common name(s) Canada thistle
Family Asteraceae (Aster family)
Flowers color: pink   petals: irregular
Leaves alternate
Lifecycle perennial
Peak bloom period June to July
Origin introduced from Europe

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense
Cirsium arvense

Cirsium arvense - leaves
Cirsium arvense - leaves

Cirsium arvense - leaves
Cirsium arvense - leaves

Cirsium arvense - leaves
Cirsium arvense - leaves

Cirsium arvense - stem
Cirsium arvense - stem