Ulmus pumila, Ulmus pumila and Ulmus pumila are mainly produced in temperate zones, deciduous trees and tall trees, which are distributed all over the north, especially in the Yellow River basin. Elm wood is tough, clear in texture, moderate in hardness and strength, suitable for general relief carvings, smooth in plane, beautiful in chord patterns, and "chicken-winged wood" patterns, which can be used for furniture and decoration. After drying, modeling, carving, polishing and painting, elm can be made into exquisite carved lacquer crafts. Russian old elm (purple elm) is the most classic, with the advantages of clear texture and less scars on the tree, and it is a precious material for making furniture.

Old elm refers to the elm that has grown in Chenfang for many years after being cut down, including the elm beams removed from some old houses in the north. Because the old elm is completely aged and has excellent stability, it is much better to make furniture than the new elm.

Sassafras, Lauraceae, Sassafras, deciduous trees. Besides this species, there are two species of Sassafras: Sassafras americana and Sassafras Taiwan Province. The height of the tree can reach 35 meters, and the DBH is 1.3 meters. The trunk is very straight. The bark is dark gray and longitudinally split. Leaves alternate, entire or 2-3-lobed. Pinnate vein; The petiole is slender. Flowers bisexual, anthers 4-loculed. Drupe is purple-black or blue-black. Mainly distributed in Zhejiang, Jiangxi, Hunan, Hubei, An Wei, Jiangsu, Sichuan, Guizhou, Guangdong and Guangxi. The vertical distribution is mostly below 800 meters above sea level. Natural forests are mostly located in the middle and lower parts of valleys and hillsides, and there are mixed Pinus massoniana, Chinese fir and camphor trees. , and distributed in clusters or individually dispersed. I like sunny, warm and humid climate, and I like deep, loose and well-drained acid red soil or acid yellow soil, which can be planted and planted. Sassafras sassafras wood is hard and dense, sapwood is yellow or light brown, heartwood is chestnut brown or dark brown, with beautiful texture, strong compression resistance, fragrance, water resistance and moisture resistance. It is a material for shipbuilding, architecture and furniture. Branches, leaves and roots contain aromatic oil, which can be used as medicine. But,

Beech (here refers to beech produced in China) is a genus of beech in Ulmaceae, also known as "ash wood" or "ash wood", which is produced in the middle and lower reaches of the Yangtze River in southern China. Because the branches and leaves of beech are similar to elm, they are the same subject, and in order to distinguish them from elm, some people call them Nanyu. In the Ming and Qing dynasties, traditional furniture, especially folk furniture, was widely used. This kind of beech furniture is mostly Ming-style, and its shape and manufacturing technology are basically the same as those of hardwood furniture such as Huang Huali, which has considerable artistic and historical value. Beech wood is heavy, strong, impact resistant, easy to bend under steam, can be made into various shapes, and has good nail holding performance. It is unique to Jiangnan, with clear texture, uniform texture and soft and smooth timbre. It is heavier than most ordinary hardwoods and belongs to the upper-middle level in all wood hardness rankings. Because of the superior performance and limited output of beech, its value is higher than that of ordinary elm.

"South Elm" is a synonym. At present, some practitioners engaged in the manufacture and sale of wood and furniture refer to Sassafras sassafras as "south elm" or even directly as elm. In fact, sassafras is Lauraceae, elm is Ulmaceae, sassafras has nothing to do with elm. As far as furniture manufacturing is concerned, beech is not as good as elm, let alone beech. Calling sassafras elm elm is nothing more than thinking that elm is famous and easily accepted by customers. In this regard, it is quite tricky.