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Warning! This is an invasive plant, which has the potential to aggressivley crowd out native species. Learn more about invasive plants!

Canada Thistle (Cirsium arvense)

Image ID: 2019/kane22L

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·leaf
Family: Asteraceae (Sunflower)
Height: 1 to 5 ft.
Blooms: June to October
Leaf Type: lobed
Bloom Size:  1 in. (typical)
Flower Description: Individual flowers, Parts indistinct
Location: Kane Woods
Date:  7/30/2019
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We started out as wildflowers from the bicycle trails of western Pennsylvania, but we've grown!
Meyer, Joseph E. (1918). The Herbalist and Herb Doctor. Hammond, Ind.: Indiana Herb Gardens. 400 pp.

The Herbalist