天冬亳州直发 天冬道地药材 天冬供应正规 天冬正宗中药材

天冬，中药名。为百合科植物天冬Asparagus cochinchinensis(Lour.)Merr.的干燥块根。从河北、山西、陕西、甘肃等省的南部至华东、中南、西南各省区都有分布。具有养阴润燥，清肺生津之功效。常用于肺燥干咳，顿咳痰黏，腰膝酸痛，骨蒸潮热，内热消渴，热病津伤，咽干口渴，肠燥便秘。呈长纺锤形，略弯曲，长5～18cm，直径0.5～2cm。表面黄白色至淡黄棕色，半透明，光滑或具深浅不等的纵皱纹，偶有残存的灰棕色外皮。质硬或柔润，有黏性，断面角质样，中柱黄白色。气微，味甜、微苦。呈长纺锤形，略弯曲，长5～18cm，直径0.5～2cm。表面黄白色至淡黄棕色，半透明，光滑或具深浅不等的纵皱纹，偶有残存的灰棕色外皮。质硬或柔润，有黏性，断面角质样，中柱黄白色。气微，味甜、微苦。

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攀援植物。根在中部或近末端成纺锤状膨大，膨大部分长3-5厘米，粗1-2厘米。茎平滑，常弯曲或扭曲，长可达1-2米，分枝具棱或狭翅。叶状枝通常每3枚成簇，扁平或由于中脉龙骨状而略呈锐三棱形，稍镰刀状，长0.5-8厘米，宽约1-2毫米；茎上的鳞片状叶基部延伸为长2.5-3.5毫米的硬刺，在分枝上的刺较短或不明显。花通常每2朵腋生，淡绿色；花梗长2-6毫米，关节一般位于中部，有时位置有变化；雄花：花被长2.5-3毫米；花丝不贴生于花被片上；雌花大小和雄花相似。浆果直径6-7毫米，熟时红色，有1颗种子。花期5-6月，果期8-10月。秋、冬二季采挖，洗净，除去茎基和须根，置沸水中煮或蒸至透心，趁热除去外皮，洗净，干燥。

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1、治血虚肺燥，皮肤拆裂及肺痿咳脓血证：天门冬新掘者不拘多少，净洗，去心、皮，细捣，绞取汁用砂锅慢火熬成膏，每用一二匙，空心温酒调服。（《医学正传）天门冬膏）2、治肺胃燥热，痰涩咳嗽：天门冬(去心)、麦门冬(去心)等分。上两味熬膏，炼白蜜收，不时含热咽之。(《张氏医通》二冬膏)3、治肺痿咳嗽，吐涎沫，心中温温．咽燥而不渴者：生天冬捣取汁一升，酒一斗，饴一升，紫菀四合，人铜器于汤上煎至可丸。服如杏子大一丸，日可三服。(《肘后方》)