|Common Name:||Marsh plume thistle|
|Method of Transportation:||Light, parachute like seeds spread by wind and water. Also spread by birds.|
|Habitat/Range:||Moist and disturbed areas that are naturally open such as riparian areas.|
Cirsium palustre is a very tall thistle (up to 2 m tall) that usually has a single unbranched stem. The flowers are purple and found at the top of the plant. Leaves are spiny with purple edges and most leaves are found at the base of the plant. Current sites are actively being contained, the most prominent one being between Purden Lake and Valemount. Early Detection Rapid Response system should be used outside of these areas to prevent any further expansion.