The difference between shrubs and trees lies in the height, trunk and lateral branches. The height of trees is usually more than 6 meters, and the maximum height of small trees is 6 to 10 meters. Shrubs are relatively short trees, and the height is generally between 3 and 6 meters.

Trees have independent tall trunks, and there is a clear boundary between trunk and crown. They are usually divided into deciduous trees and evergreen trees according to whether they shed their leaves in winter or in drought. Shrubs belong to woody plants, with no obvious trunk or low trunk. Trees generally have only 1 root upright trunk, and the trunk base has no branches. Shrubs have clustered branches from the ground, or a large number of lateral branches grow on the trunk at the base.

Shrubs are often divided into shrubs and subshrubs, among which subshrubs belong to perennial trees below 3 meters, and the upper branches are semi-lignified, which will wither after flowering. The part below 20 cm at the base of the stem is highly lignified and will not freeze to death in winter, such as cassia seed, cranberry, lavender, periwinkle, thyme and rhododendron.

Shrub species

Common flowering shrubs include Red Prince Ribbon, Four Seasons Ribbon, Red Ruimu, Lilac, Elderberry, Golden Ligustrum lucidum, Golden Leaf Bellows Fruit, Huangruimu, Red Snow Fruit, Callicarpa formosana, White Lilac, Muxiuqiu, Tang Di, Hibiscus, Lagerstroemia indica, Bauhinia, Pearl Plum, Red Rose, White Rose, Yellow thorn Plum, Forsythia, Treasure Wood and so on.

Purple-leaf dwarf cherry, Xifu begonia, sticky begonia, begonia, emerald begonia, ruby begonia, Japanese cherry blossom, magnolia, pomegranate, fruit pomegranate, cotinus coggygria, American red carp, Tianmu Qionghua, Haizhou Changshan, Yingchun, water wax, wintersweet, Xunzi Pingzhi, silkworm, Ligustrum japonicum and boxwood.