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车前子与藿香的种子外观很相似,临床有将非药用的藿香种子充当车前子出售,影响临床疗效,今将二者鉴别特征介绍如下。车前子为车前草科植物车前(Plango asiatica)或平车前(P.depressa)的种子。前者称大粒车前,后者称小粒车前。大粒车前:呈椭圆形成不规则长圆形,稍扁,长约2 mm,宽约1 mm。表面黄棕色或黑棕色,扩大镜下可见细密网纹。种脐淡
Psyllium and rugosa seeds look very similar to the clinical non-medicinal musk seeds sold as a psyllium, affecting clinical efficacy, the identification characteristics of the two are introduced below. The plantago is the seed of Planago asiatica or P.depressa. The former claimed to be a large grain car, and the latter said to be a small grain car. In front of large pellets: The ellipse forms an irregular oblong shape, slightly flat, about 2 mm long and about 1 mm wide. The surface is yellow-brown or black-brown and the fine mesh can be seen under the enlarged microscope. Umbilical light