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扭肚藤的药材性状与鉴别

ว 2026-09-09 23:09:28ที่ 鉴别方法เ 中国国际医疗服务系统
扭肚藤为木犀科植物扭肚藤Jasminum elongatum (Bergium) Willd.的枝叶。药材性状:茎呈类圆柱形,多扭曲成团,或截段,长3-5cm,直径1-5mm;幼枝茶褐色,有疏毛或近光滑,节部稍膨大;质坚,断面粗糙,木部白色,中央具明显的髓部或形成空洞。叶对生或脱落,多卷曲皱缩,展平后呈卵状披针形,长3-7cm宽1.5-3cm,先端短尖,基部略呈心形,二面茶褐色,下面脉上有柔毛,叶柄短长约5mm。气微香,味微涩。以叶多、枝少、色茶褐者为佳。原形态:攀援灌木高1-7m,小枝圆柱形疏被短柔毛至密被黄褐色绒毛,叶对生单叶纸质卵形狭卵形或卵状披针形长3-11cm宽2-5.5cm先端短尖或锐尖基部圆形截形或微心形两面被短柔毛或除下面脉上被毛外其余近无毛侧脉3-5对,聚伞花序密集顶生或腋生通常着生于侧枝顶端有花多朵,花冠白色高脚碟状花冠管长2-3cm裂片6-9枚披针形,果长圆形或卵圆形长1-1.2cm呈黑色,花期4-12月果期8月至翌年3月。分布于广东、海南、广西、云南,生于灌木丛、混交林及沙地。夏秋季采收鲜用或晒干。扭肚藤与素馨花来源相近但药用部位不同,扭肚藤用枝叶功能清热利湿解毒,素馨花用花功能疏肝理气,需注意鉴别。
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