Any of various plants of the genus Sonchus, especially S. oleraceus of Eurasia, having prickly leaves and rayed, yellow flower heads.

• 苦菜：任一种苦苣菜属的植物，尤指产于欧亚大陆的盆栽苦苣菜，生带刺的叶子，开呈辐射状的黄花