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论述了云南31种药用菊科植物微量元素含量的特征，含量变化为Fe＞Zn＞Cu＞Pb＞Cr和Fe＞Mn＞Cu＞Pb＞Ni。31种植物中Fe、Mn含量相对较高，Cr含量相对较低。用系统聚类法，根据欧氏距离，以3.018为分类阀值，被分为4组。叶下花、臭灵丹、狭叶免耳风各成一类，余下28种植物为一类。若以1．477为阀值分类，亚组Ⅳ可分为8组，其中组1-山紫苑、滇川还阳参、夏田菊、牛蒡；组2-双股箭、马兰、木香；组3-多茎鼠草、香丝草、艾叶、蒲公英。辣子草、千里光、婆婆针、续断菊、紫茎泽兰、凤毛菊。聚类分析不但反映不同组别间微量元素含量的差异，也反映不同生态环境条件对聚类的影响，反映了植物间的亲疏关系。
The characteristics of trace element content in 31 medicinal plants of the family Asteraceae in Yunnan were discussed. The content changes were Fe>Zn>Cu>Pb>Cr and Fe>Mn>Cu>Pb>Ni. 31 The contents of Fe and Mn in the plant were relatively high, and the Cr content was relatively low. Using the system clustering method, according to the Euclidean distance, the classification threshold is 3.018, which is divided into 4 groups. Under the leaves, flowers, stinky Dan, narrow leaves from the ears each into a category, the remaining 28 species of plants as a class. If 1.477 is used as the threshold value, subgroup IV can be divided into 8 groups, among which group 1 - mountain asters, chuanchuan ginseng, summer field chrysanthemum, burdock; group 2 - double-stranded arrow, melane, woody; group 3 - multi-stemmed rat grass, scented grass, leaves, dandelion. Spicy grass, senecio, mother-in-law, chrysanthemum, Eupatorium adenophorum, Phoenix. Cluster analysis not only reflects the difference in trace element content among different groups, but also reflects the influence of different ecological conditions on clustering, and reflects the close relationship between plants.