(接上期)多年生杂草根据营养繁殖的特点又分为8类。有的杂草兼有两种不同的营养繁殖体,如香附子既有根状茎又有块茎;眼子菜既有根状茎又有冬芽;空心莲子草主要进行根状茎繁殖,茎的节段也可萌生成株。①根茎繁殖型多年生杂草。如禾本科的白茅、芦苇,莎草科的牛毛毡、水莎草,木贼 (Connected) perennial weeds according to the characteristics of nutrition and is divided into 8 categories. Some weeds also have two different vegetative propagules, such as Cymbidium both rhizomes and tubers; Rhizoma both rhizomes and winter buds; Alternanthera philoxeroides mainly rhizome propagation, stem Segments can also sprout into plants. ① rhizomatous perennial weeds. Such as Gramineae Imperatae, reeds, Cyperaceae cattle blankets, water sedge, Horsetail