园林树木的形态特征（Morphological characteristics of garden trees）.docVIP

园林树木的形态特征（Morphological characteristics of garden trees） The description of morphological features includes six aspects: tree type, tree trunk, crown, leaf, flower and fruit, starting from the easy to recognize foundation, and the later three parts. Some species have special morphology in other branches, such as roots, seeds and other aspects are briefly described. (I) tree type: That is to say, the life forms of garden trees are classified into three categories according to their habits: 1. trees: trees, with obvious trunk of trees, the same tree, according to the growth characteristics of leaves can be divided into evergreen trees, deciduous trees, semi evergreen trees; according to the shape and size of leaves can be divided into coniferous trees, broad leaved tree; tree in height can be divided into large trees, trees and small trees etc.. 2. shrubs: the tree trunk is short, not obvious or no backbone of a cluster of state trees, the same kind of shrubs, according to the growth characteristics of leaves can be divided into evergreen shrubs, deciduous shrub, semi evergreen shrub and tree branches; according to the body size can be divided into large shrubs, small shrubs, bushy shrub and creeping shrub. In recent years, with the development of landscape greening, shrubs, flowers, fruits, leaves, branches and other ornamental flowers have been collectively referred to as flowering shrubs. 3. liana species (vines) that cling to it and to the growth of creeping woody plants. The same type of vine species, according to the growth characteristics of leaves can be divided into evergreen liana species and deciduous liana species, according to the characteristics of wind can be divided into winding (such as Wisteria), roots (such as Ling Xiao), tendril (such as grapes), suckers (such as ivy) different types of climbing style. (two) trunk: The description of the trunk is mainly in the shape, color and other aspects of the skin, and the characteristics of the cortex and the