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草乌叶的鉴别方法与植物形态

ว 2026-09-09 23:09:31ที่ 鉴别方法เ 中国国际医疗服务系统
草乌叶原植物北乌头为多年生草本,株高80~150cm,无毛。块根倒圆锥形,长2.5~5cm,暗黑褐色。茎下部叶具长柄,花时常枯萎。茎中部叶五角形,长5~12cm,宽6~20cm,基部心形,3裂,中央裂片菱形,渐尖,近羽状深裂,小裂片披针形,侧全裂片斜扇形,不等2深裂,上面被微柔毛,下面几无毛。总状花序,萼片5,紫蓝色,上萼片盔形,高1.5~2.5cm,花瓣2,无毛。蓇葖果,长1~2cm,种子有膜质翅。花果期7~9月。草乌叶药材多皱缩破碎,完整叶片展平后呈五角形,3全裂,中央裂片菱形,渐尖,近羽状深裂,小裂片披针形,上面黄绿色或暗绿色,下面色较浅。质脆,气微,味辛、涩。以叶完整、色绿者为佳。
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