第三讲 杜仲 本品为杜仲科植物Eucommia ulmoidesOliv。的干燥树皮。我省是杜仲主要产区之一。从分布来看,全省各县均产,但以遵义、毕节、安顺等地区产量较大,遍销全国,并由广州出口。以春夏两季剥取树皮,但以夏季采收为宜,因此时易于剥皮,其他季节剥下的皮不易成整块,刮去粗皮,使之发汗至内皮呈紫褐色,晒干。生用,或盐水炒用。 杜仲药材鉴别:呈扁平的板片状,少数为微曲的薄片,大小不等,厚约2～8毫米。外表面灰褐色或灰黑色,薄树皮具稀疏横裂的皮 Lecture 3 Eucommia This product is Eucommia ulmoides Oliv. Dry bark. Our province is one of the main producing areas of Eucommia. From the distribution point of view, all counties in the province are producing, but in Zunyi, Bijie, Anshun and other regions, the output is relatively large, sold throughout the country, and exported from Guangzhou. The bark is stripped in spring and summer, but it is suitable for summer harvesting. Therefore, it is easy to peel, and the skin peeled off in other seasons is not easy to become a whole piece, and the rough skin is scraped off, causing it to perspire until the endothelium is purple brown and dried. Used raw, or salt water fry. Eucommia herbs identification: flat plate-like, a small number of micro-slit thin, ranging in size, thickness of about 2 to 8 mm. Outer surface grayish brown or gray black, thin bark with sparsely transverse skin