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Growing on the mountain in Chaqingsongduo National Nature Reserve in Garze Tibetan Autonomous Prefecture, southwest China's Sichuan Province, Chinese stellera is called "wolf poison plant" in Chinese because it contains poisonous coumarin. However, it is a good thing for the Tibetans living here. Its rhizome is rich in bast fibers, a good material for papermaking. The stellera paper has been used in Tibetan communities for a long time and the technique has been passed on for more than 1,000 years.