Perennial Sow Thistle

Sonchus arvensis

  1. Extensive creeping-rooted perennial with yellow dandelion-like flowers on tall stems; prickly leaves
  2. Herbicide control at pre-bud stage; repeatitive mowing can control seed production; trained livestock grazing.
  3. Identification Guide for Alberta Invasive Plants
    Weeds of the Prairies
    WeedsBMP App BC – iOS | Android

Photos

Montana Statewide Noxious Weed Awareness and Education Program , Montana State University, Bugwood.org
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Tom Heutte, USDA Forest Service, Bugwood.org
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Steve Dewey, Utah State University, Bugwood.org
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