Canada thistle can be found in clay to gravelly soils. 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, ...

Canada thistle (Cirsium arvense) was one such plant when we moved to Northeast Ohio five years ago.The blue-gray foliage of the rosette-shaped seedlings looked intriguing during spring, and in the ...

VAIL, Colorado – The town of Vail will continue a campaign to combat undesirable plant species when work gets under way next week with a third round of herbicide application occurring Monday through ...