Regulated Act: Alberta Weed Control Act
Provincial Designation: Prohibited Noxious
Colour: Purple
Latin Name: Cirsium palustre
Fact Sheet1: Click Here to View/Download PDF
Marsh Thistle Leaf Photo Credit Caleb Slemmons, National Ecological Observatory Network, Bugwood.org
Marsh Thistle Stem Photo Credit Caleb Slemmons, National Ecological Observatory Network, Bugwood.org
![Thistle, Marsh A close up of some purple flowers in the grass.](https://abinvasives.ca/wp-content/uploads/bb-plugin/cache/Thistle-Marsh-square-98420a9d4967407e5fdca52180d15804-5eea4e20a628a.jpg)
![Thistle, Marsh A close up of some purple flowers in the grass.](https://abinvasives.ca/wp-content/uploads/bb-plugin/cache/Thistle-Marsh-square-98420a9d4967407e5fdca52180d15804-5eea4e20a628a.jpg)