Regulated Act: Alberta Weed Control Act
Provincial Designation: Prohibited Noxious
Colour: Pink
Latin Name: Centaurea × moncktonii
Fact Sheet: View
Knapweed, meadow Cindy Roche, Bugwood.org
Knapweed, meadow Eric Coombs, Oregon Department of Agriculture, Bugwood.org
Marsh Thistle Flower _ Stem Photo Credit Rob Routledge, Sault College, Bugwood.org
