Which regions are the main producing areas of Gastrodia elata

Gastrodia elata producing areas are found in mountainous regions of the tropical, subtropical, temperate and cold-temperate zones. From New Zealand and New Caledonia in the east to Madagascar in the west. From Australia and New Zealand in the south to Northeast China and the Russian Far East in the north. It mainly includes China, India, Thailand, Bhutan, Nepal, Japan, Sri Lanka, Madagascar, Australia, New Zealand, the Ryukyu Islands and the Bonin Islands (which were once tributary states of China), Borneo, the Malay Peninsula of Malaysia, New Caledonia, as well as Korea, the Philippines, Russia's Far East regions of Amur Oblast and Primorsky Krai, the Kuril Islands and other areas. This plant has not been found on the African continent, in Europe or in the Americas.

Wild Gastrodia elata

It is widely distributed in Sichuan, Guizhou, Yunnan, Shaanxi, Hubei, Gansu, Anhui, Henan, Hebei, Jiangxi, Hunan, Guangxi, Jilin, Liaoning and other places, among which the products from western Guizhou, southern Sichuan and northeastern Yunnan are famous authentic medicinal materials of particularly good quality. It is mainly produced in Bijie, Dafang, Qianxi, Guiding, Hezhang, Duyun and Zunyi in Guizhou; Yingjing, Gulin, Xuyong, Yibin, Leibo, Mabian, Tongjiang, Maoxian, Leshan, Hongya, Ya'an, Maowen and Wenchuan in Sichuan; and Zhaotong, Yiliang, Zhenxiong, Yongshan, Daguan, Suijiang, Yanjin and Ludian in Yunnan. In addition, it is also produced in Hanzhong, Ankang and Shangluo in Shaanxi; Gannan, Wenxian and Longnan in Gansu; Xixia, Lushi and Tongbai in Henan; Hunjiang, Fusong, Linjiang and Tonghua in Jilin; and Yuexi and Huoshan in Anhui.

Cultivated Gastrodia elata

It is mainly produced in Lueyang, Chenggu, Xixiang, Mianxian, Ningqiang, Zhen'an and Shangzhou in Shaanxi (among them, Lueyang Gastrodia elata has been certified as a geographical indication by the General Administration of Quality Supervision, Inspection and Quarantine, and Lueyang is also the largest Gastrodia elata production base in the country), and southern Shaanxi; Huoshan, Yuexi and Jinzhai in Anhui; Tongjiang and Guangyuan in Sichuan; Jinping, Wuchuan, Dejiang, Duyun and Anshun in Guizhou; Zhaotong in Yunnan; Hefeng, Enshi, Yunxi, Yunxian, Zhushan and Yichang in Hubei; Xixia, Tongbai and Luanchuan in Henan; Fusong in Jilin; and Xinbin in Liaoning and other places.