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天麻为兰科天麻属二年生草本植物。没有根系和枝叶,不靠光合作用积累营养,而是和蜜环菌共生。整个生活史约为18个月左右。其中,15个月是在地下生长,从抽箭(即天麻的茎)露出地面到开花、结果,仅70天左右,以地下块茎入药。能息风、定惊、益气、祛风湿、通经脉、强筋骨,可治四肢痉挛、半身不遂、眩晕头痛及惊痫等症,为
Gastrodia Gastrodia Gastrodia is a biennial herb. No roots and foliage, not by photosynthesis accumulation of nutrients, but with honey ring symbiosis. The entire life history is about 18 months or so. Among them, 15 months is growing underground, from the arrow (that is, the stem of gastrodin) to reveal the ground to flowering, the result, only about 70 days, the underground tubers medicine. Wind can be, will be scared, Qi, rheumatism, meridians, strong bones and muscles, can cure limb spasms, hemiplegia, dizziness, headache and epilepsy embolism, for