天麻,别名赤箭、寄风草、水洋芋,为兰科寄生草本植物。以块茎入药,性平味甘,平肝息风,镇惊通络,能益气养肝、去风湿、强筋骨,主治头痛、眩晕、癫癎等症并可促进胆汁分泌,是一种名贵中药材。天麻主要生长在山区的杂木林内,本身不能制造养分,而是依靠杂木林内的密环菌为其提供养分。长期以来,天麻一直靠野生,产量有限。近几年,天麻由野生改为人工 Gastrodia, alias red arrow, send wind grass, water potato, Orchidaceae parasitic herbs. To tubers medicine, sweet nature, Pinggan Xi wind, shock Jing Tongluo, Qi and Liver, to rheumatism, strong bones, attending headache, dizziness, epilepsy embolism and can promote bile secretion, is a precious Chinese herbal medicines. Gastrodia mainly grows in the mountainous area of ​​the mixed woods, which themselves can not make nutrients, but instead rely on the bacteria in the woods to provide nutrients. For a long time, Gastrodia has been relying on the wild, the output is limited. In recent years, Tianma changed from wild to artificial