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白茅根为常用中药。商品为禾本科植物白茅的干燥根茎。白茅根史载于《神农本草经》,列为中品。因其叶如矛,故称之茅。李时珍曰:“茅有白茅、管茅、黄茅、香茅、芭茅数种,叶皆相似。白茅短小,三四月开白花成穗结细实;其根基长,白软如筋而有节;味甘,俗呼丝茅。”历代本草记载的白茅根与现在所用一致。本品味甘,性寒,归肺、胃、膀胱经。具有凉血止血、清热利尿之功效,常用于治疗血热吐血、
Rhizoma Imperatae is commonly used traditional Chinese medicine. Commodity for the gramineae rhizome dry Rhizome. The history of Rhizoma Imperatae is contained in “Shen Nong’s Materia Medica”, which is listed as the middle grade. Because of its leaves, such as spears, so called Mao. Li Shizhen said: “Mao with Plum, tube Mao, Huang Mao, Lemongrass, Bachelors several species are similar to the leaves. White was short, white flowers into a spike in April and April; its root length, white soft as the tendon and Section; sweet, popular call scutellaria. ”" Imperatae recorded in the ancient books consistent with the present. This product sweet, cold, to the lungs, stomach, bladder by. Has the effect of cooling blood to stop bleeding, diuresis, commonly used in the treatment of blood spitting blood,