对款冬营养器官解剖结构研究表明：根为典型的双子叶植物根的结构，初生木质部四原型；
The anatomical structure of Tussilago farfara L. vegetative organs showed that its structure of root is a typical structure of dicotyledonea. Its primary xylem is quadriarch ones.
冰凉花属于宿根植物，其根几乎终生为初生结构。一年生苗直根系的主根和侧根的初生木质部均为二原型。
Adonis amurensis is perennial herb, Its roots are nearly primary structure in the whole life, Primary Xylems of main root and lateral roots of one year seedling are diarch.
结果表明：角茴香其根的结构特点为双子叶植物根的正常初生结构；
The results show: the structural features of its root are the same as those of the root of dicotyls at the early stage of normal growth;
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