大黄乃是一种国产的药材,又名黄良,西名Rhubarb(Rhizome of Rheum Palmatum)。早年经土耳其运销欧洲各国,因此欧人称为土耳其大黄(Turkey Rhubarb)。我国山西、陕西、河北、河南蒙古、甘肃、青海、四川及广东等省,都产大黄。但品质很有差别,陕西产的大黄,品质优良,占全国首位。其次的是四川产与广东产,品质尚可。国产大黄,销售国外的,年达十数万磅。大黄种植与配制药材大黄是一种短树,根粗杆细,树高不足七尺,叶粗大,花分红黄绿等颜色。种植六年至十年后,方可采取,但是有的在七年后,已经采割制药。采取方法,先将树根从泥中掘出,除去花叶,剥去外皮,树根粗大,约二尺余长,含药料多;树杆细而圆,含药料少。树杆切成横 Rhubarb is a domestically produced medicinal material, also known as Huang Liang, and the western name Rhubarb (Rhizome of Rheum Palmatum). In early years, it was shipped to European countries through Turkey, so the Europeans called Turkey Rhubarb. China’s Shanxi, Shaanxi, Hebei, Henan, Mongolia, Gansu, Qinghai, Sichuan and Guangdong provinces all produce rhubarb. However, the quality is very different. The rhubarb produced in Shaanxi is of high quality and occupies the first place in the country. Followed by Sichuan and Guangdong production, quality is acceptable. Domestic rhubarb, sold abroad, amounts to tens of thousands of pounds. Rhubarb planting and preparation of medicinal herbs Rhubarb is a short-grained tree with thick and thin roots, less than seven feet tall, thick leaves, and flowers with yellow and green colors. It can take six to ten years after planting, but some years later, it has already been harvested. To take measures, first dig the roots out of the mud, remove the leaves and leaves, peel the skin, the roots are thick, about two feet long, and contain more medicinal material; the stems are fine and round, with little medicinal material. Tree pole cut into horizontal