Thistle, Marsh

Regulated Act: Alberta Weed Control Act

Provincial Designation: Prohibited Noxious

Colour: Purple

Latin Name: Cirsium palustre

Fact Sheet: Click Here to View/Download PDF

A thistle is shown with its purple flower.

Marsh Thistle Flower _ Stem Photo Credit Rob Routledge, Sault College, Bugwood.org

A person holding a plant in their hand.

Marsh Thistle Leaf Photo Credit Caleb Slemmons, National Ecological Observatory Network, Bugwood.org

A close up of the stem of a plant

Marsh Thistle Stem Photo Credit Caleb Slemmons, National Ecological Observatory Network, Bugwood.org

A tall purple flower in the middle of a forest.

Marsh Thistle Whole Plant Photo Credit Caleb Slemmons, National Ecological Observatory Network, Bugwood.org
A close up of some purple flowers in the grass.