Identifying features include: Like other thistles, bull thistle is armed with a great number of spines that can and will penetrate exposed skin. For more information visit the Midwest Invasive Species ...

Species like Canada and bull thistles are ... If you see one, take immediate action to get rid of it. "Bull thistle is ...

typically grows 3-5 feet tall stalk-less leaves around 6 inches long, wavy, lobed leaves with yellow spines at each lobe stem is spineless, unlike the leaves and unlike bull thistle ... Invasive ...