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连钱草的原植物与药材鉴别

ว 2026-09-10 00:18:31ที่ https://www.wiki8.cn/lianqiancao_22847/เ admin

连钱草原植物活血丹为多年生草本,匍匐茎逐节生根,上升部分高10~20厘米。叶对生,叶柄长,叶片肾形或圆心形,长1.5~3厘米,宽2~3.5厘米,先端圆形,基部心形,边缘具圆齿,上面被疏粗伏毛。轮伞花序腋生,花淡蓝色或紫色,花冠二唇形。小坚果长圆形,褐色。药材茎呈方柱形而扭曲,多分枝,直径1~2毫米,表面黄绿色或紫红色,具纵棱及短柔毛;叶对生多皱缩破碎,完整者肾形或心形,边缘具圆齿。气微,味微苦。以叶多、色绿、气香浓者为佳。春至秋季采收地上部分,除去杂质晒干。除青海、新疆及西藏外全国各地均有分布。商品作金钱草使用,与报春花科过路黄(四川金钱草)不同,应注意区别。以上性状与显微鉴别要点可作为临床及药材采购时的真伪优劣鉴别参考。

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