泡桐属的自然分布区为北纬20—40°,东经98—125°。湖北省位于北纬20°05′—33°20′,东经108°30′—116°10′。正处于泡桐属分布中心地带,因而资源丰富,分布极广。由于其生长迅速,材质优良,适应性强,繁殖容易,久为本省各地群众采用于四旁植树或成片造林。但在繁殖推广中,存在有对各地泡桐种源不清,优劣莫辨;各种泡 The natural distribution area of ​​Paulownia is 20-40 ° north latitude and 98-125 ° longitude. Hubei Province is located north latitude 20 ° 05’-33 ° 20 ’and longitude 108 ° 30’-116 ° 10’. Is located in the center of Paulownia distribution, which is rich in resources, widely distributed. Because of its rapid growth, good material, adaptability, easy reproduction, for a long time for the masses around the province used in all four planting trees or into pieces of afforestation. However, in the promotion of reproduction, there is a clear source of Paulownia around the world, the advantages and disadvantages of Mo; all kinds of bubble