[Members of the Sunflower Family with Button-like Heads of Mt. Adams]
The Thistles of Mt. Adams Country

The Genus Cirsium

Canada Thistle: Cirsium arvense

1. Canada Thistle: Cirsium arvense -

2. Cayuse Thistle, Edible Thistle, Indian Thistle: Cirsium edule var. macounii -

3. Bull Thistle, Common Thistle: Cirsium vulgare -

Paul Slichter E-mail