Sonchus asper (Spiny Sowthistle) is a species of annual herb in the family Asteraceae. It has a self-supporting growth form. It is native to Africa, Europe, and Asia. Spiny Sowthistle has simple, broad leaves. Flowers are visited by Orange Sulphur. Spiny Sowthistle is a photoautotroph. Individuals can grow to 0.45 m.
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