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菝葜的药材性状与鉴别

ว 2026-09-10 00:18:31ที่ https://www.wiki8.cn/baqia_22998/archive_23671.htmlเ admin

菝葜药材为干燥根茎,呈不规则圆柱形或扁柱形,略弯曲,长10~20厘米,直径2~3厘米。外表黄棕色或紫棕色,具圆锥状突起的茎基痕及坚硬的须根残基,先端常残留木质茎基。质坚硬,难折断,折断面呈棕黄色或红棕色,粗纤维性,可见点状维管束和多数小亮点。切片呈不规则形,厚0.3~1厘米,边缘不整齐,切面粗纤维性,质硬,折断时有粉尘飞扬。气微,味微苦、涩。以质硬、切面棕黄色者为佳。主产华东、中南、西南及台湾等地。秋末至次年春初采挖根茎,洗净除去须根及泥土,晒干或趁鲜切片晒干。商品常与同属植物土茯苓(光叶菝葜)混淆,土茯苓切片断面类白色粉性、味微甘,可资区别。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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