Sonchus oleraceus (common sowthistle, sow thistle, smooth sow thistle, annual sow thistle, hare's colwort, hare's thistle, milky tassel, swinies) is native to Asia and Europe. The Latin name Sonchus refers to the hollow stem, while oleraceus refers to its good taste.[5] The common name sow thistle refers to its attractiveness to swine, and the similarity of the leaf to younger thistle plants. The common name hare's thistle refers to its beneficial effects and attractiveness for hare and rabbits.
Botanical characteristics
Prefers full sun, and can tolerate most soil conditions. The flowers are hermaphroditic, and common pollinators include bees. It spreads by seeds being carried by wind or water.
This plant is considered an invasive species in many parts of the world, where it is found mostly in disturbed areas.