Canada Thistle (Cirsium arvense)
Image ID: yrt19
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: Youghiogheny River Trail
More photos of this flower
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.