Sonchus asper (Spiny Sowthistle) is a species of annual herb in the family Asteraceae. They have a self-supporting growth form. They are native to Africa, Europe, and Asia. They have simple, broad leaves. Flowers are visited by Syritta pipiens, Cheilosia bergenstammi, Monarch, and Common Banded Hoverfly. Individuals can grow to 0.45 m.
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