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三七为五加科植物的干燥根,主产于云南、广西等省区,系名贵中药材之一。鉴别三七真伪的简单方法: 一、性状特征:三七呈类圆锥或圆柱形,长1～6厘米,直径1～4厘米,顶端有茎痕,周围有瘤状突起,即“乳包”,底部有支根痕俗称“钉头”,表面呈灰褐色或灰黄色,即“铁皮”或“铜皮”,质坚实不易折断,易击碎后皮部并易与木部分离,俗称“皮骨分离”,断面角质状、灰绿色或黄绿色,皮部有棕色小点,中央木部色较深,有放射状纹理呈菊花心状。本品气微,味微苦而后甜,
Panax notoginseng is the dry root of the Araliaceae plant, which is mainly produced in Yunnan, Guangxi, and other provinces and autonomous regions, and is one of the precious Chinese medicinal materials. A simple method to identify the authenticity of Panax Notoginseng: 1. Traits: Panax pseudocones or cylindrical shape, 1 to 6 cm long, 1 to 4 cm in diameter, with scars on the top and knobs around the surface, ie “milk bag” ” , The bottom has a root mark commonly known as “nail head”, the surface is grayish brown or grayish yellow, namely “metal skin” or “copper skin”, which is not easy to break because of its firm quality. It is easy to break the skin and easy to separate from the wood. “Skin separation”, cross-section horny, gray-green or yellow-green, brown spots on the skin, the central wood color darker, radial texture was daisy-like heart. This product is slightly gas, slightly bitter and then sweet.