<p>The monograph is divided into three parts. The first part expounds in detail more than 30 families including Salicaceae, Juglandaceae, and Birchaceae, and introduces the classification of each family and genus. The Salicaceae includes Populus and Salix. Among the Populus includes P. alba, P. italica, etc.; the Salix includes S. pentandra), Siberian willow (S. sibirica), etc. The Juglans is the only genus in the Juglans, which covers Juglans and J. fallax. The Betula family contains the genus Betula and Corylus, and the genus Betula has a pendulous birch (B. pendula), black birch (B. nigra), etc. The second part focuses on describing the morphological characteristics of plants. For example, Populus leaves are mostly triangular or ovate with teeth on the leaf margins; Salix leaves are linear or lanceolate; Betula bark is mostly white or gray, peeling off in a paper-like manner. In terms of distribution, Salicaceae plants mostly grow on river banks and wetlands, such as white poplar, which is common in river valleys; Juglans are more common in mountainous areas; Betula is widely distributed in forests and mountains, and pendulous birch grows in northern forests. Ecologically, poplar can be used for wind prevention and sand fixation, and birch bark can be used for tanning due to its tannins. The third part introduces the economic and practical value. Walnut seeds can be eaten and extracted oil, wood can be used to make furniture; poplar can be used for papermaking and construction; birch bark can be used for handicrafts and waterproof materials, and leaves can be used as feed. Some Salix species also have medicinal potential such as anti-inflammatory and analgesic. </p>