Sow Thistle, Perennial

Regulated Act: Alberta Weed Control Act

Provincial Designation: Noxious

Colour: Yellow

Latin Name: Sonchus arvensis

Fact Sheet1: Click Here to View/Download PDF

A close up of the flower with yellow petals.
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Close-up of perennial sowthistle flowers with blurred background

A field of yellow flowers next to a tree.
A field of yellow flowers in the foreground.
A close up of yellow flowers with green leaves
A yellow flower with green background
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A close up of some yellow flowers with green stems
A close up of yellow flowers with text