Eupatorium adenophorum, also known as Ageratina adenophora, is a perennial herbaceous plant that is native to Mexico but has become invasive in various regions, including parts of Asia.

【来源】为桔梗科沙参属植物四叶沙参Adenophora tetraphylla （Thunb.） Fisch.[A. berticillata （Pall.） Fisch.]、杏叶沙参A. axilliflora Borb [A. stricta Miq.]或其同属植物，以根入药。秋季刨采，除去地上部分及须根，刮去粗皮，即时晒干。 【原形态】 1、四叶沙参（轮叶 ...