Whole or cut, dried bark of Cinchona pubescens Vahl (Cinchona succirubra Pavon), of C. calisaya (Weddell), of C. ledgeriana (Moens ex Trimen) or of its varieties or hybrids.

本茜草科植物柔毛金鸡纳（鸡纳）Cinchona pubescens Vahl (Cinchona succirubra Pavon)、白金鸡纳C. calisaya (Weddell)、金鸡纳C. ledgeriana (Moens ex Trimen)其变交的完整或切段的干燥皮。