Cirsium

Scientific Name Cirsium brevifolium Nutt. Family Asteraceae Common Names Palouse thistle Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.

Scientific Name Cirsium arvense (L.) Scopoli Family Asteraceae Common Names Canadian thistle, Canada thistle, creepiing thistle Eastern Washington Eurasia Conservation Status Notes Click on any image to enlarge it.

Scientific Name Cirsium vulgare (Savi.) Ten. Family Asteraceae Common Names bull thistle, common thistle Eastern Washington Introduced Conservation Status Notes Click on any image to enlarge it.

Scientific Name Cirsium undulatum (Nutt.) Spreng. Family Asteraceae Common Names wavy leaf thistle Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.