半灌木

具有与灌木相似外形（如不具明显的主干，高５米以下）的多年生植物.亦常在近基部生长出多个粗细相似的枝干，丛生.半灌木与灌木不同的是：半灌木介于木本植物与草木植物之间，仅在枝条的下部为多年生，并有木栓组织保护，上部是１年生的.因此在寒冷的冬天，上部的枝条枯萎或死亡，常被农人砍伐作为柴薪.半灌木也称亚灌木，如菊科的蒿属、金丝桃科金丝桃属植物等.有的半灌木也是药用植物，如麻黄、黄芪和接骨金栗兰以及某些蒿属植物等.Has the similar shape shrubs (such as the backbone of non-obvious, high-five meters or less) of the perennials. Fairly frequently in the past more than the thickness of the base of the growth of a similar branches, clusters. Semi-shrubs and shrubs difference is: semi-shrubs between between woody plants and vegetation, only the lower branches as the perennial and has cork organizations to protect the upper part is a 1-year. So in the cold winter, the upper branches wilt or death, often as firewood cutting farmers salary. semi-shrub, also known as sub-shrubs, such as the family Asteraceae Artemisia, Hypericum Hypericum plant. and some semi-shrubs are also medicinal plants, such as ephedra, Astragalus, and bone Jin Li-lan, and some Artemisia species and so on.