菊科是种子植物中最大的一科,包含有许多经济植物。供观赏的植物如大丽花属、紫菀属、藿香蓟属、金鸡菊属、百日草属、向日葵属、金盏花属、万寿菊属、天人菊属、蜡菊属以及其它许多属,而以菊属的菊花(Chysanthemum morifolium)尤为著名。菊花原产我国及日本,培育品种极多,头状花序多变化,形色奇异。本科许多种类供食用,如莴苣、筒蒿、菊芋、菜蓟、向日葵等都是常见的蔬食。药用植物尤多,中药菊花、野菊花、茵陈、青蒿、红花、白术、苍术、木香、蒲公英、千里光、牛蒡、款冬、紫菀、佩兰、旋覆花、石胡荽、旱莲草、大蓟、小蓟、菊叶三七、鬼针草、鼠曲草、一支黄花、苍耳、豨签草……等都来源自菊科。著名的驱虫药山道年和艾片,亦由本科的植物中制取。菊科还有些植物如银胶菊属含有橡胶。近年发现菊科多种植物含有倍半萜内酯类,具有强心、抗癌、驱虫、镇痛……等作用而引起注意。 Asteraceae is the largest branch of seed plants, contains many economic plants. Plants for ornamental purposes such as dahlia, aster, Ageratum, Coreopsis, Zinnia, Helianthus, Calendula, Tageta, Gynostemma, Helichrysum, and many other genera, Chrysanthemum morifolium is particularly famous. Chrysanthemum native to China and Japan, to cultivate a very large variety of head inflorescence, strange shape. Many types of undergraduate food for consumption, such as lettuce, Artemisia candelia, Jerusalem artichoke, artichoke, sunflower are common vegetables. Medicinal plants especially more, Chinese medicine, chrysanthemum, wild chrysanthemum, capillaris, Artemisia annua, safflower, Atractylodes, Atractylodes, woody, dandelion, Senecio, burdock, Coltsfoot, Aster, Perrin, Inula, Lotus, thistle, thistle, chrysanthemum Panax, Bidens grass, mouse song grass, a yellow, Xanthium, 豨 sign grass ... and so are from Compositae. The famous insect repellent Hill Road and Ai tablets, also made from undergraduate plants. Asteraceae and some plants such as guayule contain rubber. In recent years, many plants found in Compositae contain sesquiterpene lactones, with cardiac, anti-cancer, deworming, analgesic ...... role of attention.