苏木为豆科植物苏木Caesalpinia sappan linn的干燥心材。具行血祛瘀,消肿止痛之功效。临床上常用于妇科痛经、产后瘀阻、外伤肿痛等症。近年,在广西武鸣、上林等地发现一种假苏木(原植物为小叶红豆Ormosia microphylla Merr. ex L. chen的干燥心材)流人四川、湖北、黑龙江等省市,造成药材混乱。笔者曾先后收到一些省市药检部门送检数批“苏木”,要求鉴定真伪。现特 Su Mu is a dried heartwood of the legume Caesalpinia sappan linn. With bloody, swelling and pain relief. Clinically used in gynecological dysmenorrhea, postpartum obstruction, traumatic swelling and other embolism. In recent years, a type of false hematoxylin (the original heartwood of Ormosia microphylla Merr. ex L. chen) was found in Wuming, Shanglin and other places in Guangxi Province. It was found in Sichuan, Hubei, Heilongjiang and other provinces and cities, causing confusion in medicinal materials. The author once received several batches of “Sumu” from the drug inspection departments of provinces and cities for verification of authenticity. Now special