Where is the origin of Dendrobium candidum?

1. Dendrobium candidum is produced in southwest Anhui (Dabie Mountain), east Zhejiang (Yinxian, Tiantai and Xianju), west Fujian (Ninghua), northwest Guangxi (Tiane), Sichuan (location unknown) and southeast Yunnan (Shiping, Wenshan, Malipo and Xichou).

2. Dendrobium candidum is a perennial herb of Dendrobium of Orchidaceae, also known as "black knot grass". It is one of the precious Chinese herbal medicines included in China Pharmacopoeia (20 10 edition), ranking first among the "Nine Immortals", and has the functions of nourishing yin and clearing away heat, invigorating stomach and promoting fluid production. Dendrobium candidum is a rare and endangered plant under national second-class protection, which is produced in southwestern Anhui, eastern Zhejiang, western Fujian, northwestern Guangxi, Sichuan and southeastern Yunnan. Its natural reproduction rate is extremely low and its growth is slow. In addition, over-exploitation makes wild Dendrobium candidum endangered.

3. After long-term adaptation and natural selection, Dendrobium candidum has formed a unique life activity mechanism and bioactive components. "Materia Medica" says Dendrobium: Only those who live by stones win.

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