PERENNIAL SOWTHISTLE: Options for control Perennial sowthistle, a class - B noxious weed in Lincoln County, Washington (Sonchus arvensis.), is a perennial of the Asteraceae (sunflower) family. A native of Europe introduc

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• Asteraceae
• Asterales
• Asterids
• Medicinal plants
• Ruderal species
• Sonchus
• Taraxacum
• Weed
• Sonchus asper
• Invasive plant species
• Herbs
• Leaf vegetables