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猪鬃草的药材性状与鉴别

ว 2026-09-09 23:09:29ที่ 鉴别方法เ 中国国际医疗服务系统
猪鬃草为铁线蕨科植物铁线蕨Adiantum capillus-veneris L.的全草,别名铁丝草。药材性状:本品长15-40cm,叶柄纤细质硬,长9-15cm,棕黑色有光泽,形似猪鬃。一至三回羽状复叶,羽片及小羽片均为互生,微皱缩,展平后呈斜扇形或斜方形,长宽为1-2cm,先端3-5浅裂,边缘具尖齿,基部楔形。孢子囊着生羽片背面上部边缘,使叶缘反卷而成孢子囊盖,长方形横向延长略弯向外侧,表面棕色具白边。气微味淡,以叶柄黑色、羽片多、色绿者为佳。化学成分含铁线蕨酮、黄芪苷、烟花苷、异槲皮苷、山柰酚-3-葡萄糖醛酸苷、三奈酚-3-鼠李葡萄糖苷、芸香苷、槲皮素-3-葡萄糖醛酸苷、32,42-环氧绵马帖烷、21-羟基-30-降苯烷-22-酮和铁线蕨素、鞣质、挥发油、糖类等。同属植物白背铁线蕨、半月形铁线蕨和铁角蕨科植物云南铁角蕨的全草亦作猪鬃草使用。猪鬃草生于较阴湿的林下及溪边,秋季或全年采收洗净切段。
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