构树(学名Broussonetia papyrifera)别名褚桃、枸树、大谷皮绳、谷浆树、鸟子麻、野毛桑、纸皮……各省都有别名。两千年前的《诗经》就有构树的记载,《本草纲目》《天工开物》皆有讲述。日本的木制剑鞘用的就是构树。全国除新疆、西藏大部分地区有分布,多为野生,有少量栽培。全世界的构树属有5种,我国就有4种,分别是构树、小构树、藤构、落叶花桑。东汉以来,构 Tree (Broussonetia papyrifera) Alias ​​Chu peach, Citrus, big trough leather rope, tree pulp, bird hemp, wild hair mulberry, paper hh ... ... each province has an alias. Two thousand years ago, the “Book of Songs” there is a tree records, “Compendium of Materia Medica” “Heavenly Creations” are described. Japan’s wooden scabbard is used to build trees. Except for Xinjiang, most parts of Tibet are distributed, mostly wild, with a small amount of cultivation. There are 5 species of arboreal all over the world, there are 4 species in our country, they are tree, small tree, rattan structure, deciduous flower mulberry. Since the Eastern Han Dynasty, structure