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How are Firmiana simplex seeds harvested? What are the seedling-raising methods?
Firmiana simplex, also called qingtong or tongma, is a large deciduous tree that can reach 15 m in height. The trunk of Firmiana simplex is straight, and the bark is green and smooth. It is native to China and is cultivated in all provinces, north and south. Its wood is suitable for making musical instruments, its bark can be used for papermaking and ropes, and its seeds can