Abstract: According to the morphologicaL character of a rhizome of Paris polyphylla var. yunnanensis, it may be divided into three segments. They can produce descendants, but have nothing in some effect with each other. 1. The segment with terminal bud. This segment propagats new rhizome by teminal bud's movement of it's life along the direction finding and the con- tinuous growing. The aerial stem from this segment is freqently monopodial. The scgment can sprout out in the same year. It's annual growth is 1.5- 2.5 times as fast as other segments.

Key words: Paris polyphylla var.yunnanensis