Calyx cup-shaped, almost truncate, outside pulverulent pubescent.

花萼杯状，几乎截形，外面粉状短柔毛。

Leaflet blades villous. Leaflet blades and fruit slightly larger than those of autonym variety.

小叶叶具长柔毛。小叶叶比原变种的稍大。

Petals lorate, to 2 mm, pubescent on parts exposed in bud.

带状的花瓣，在2毫米，在芽中暴露部分短柔毛。

Branchlets pubescent to glabrescent with minute scurfy hairs intermixed with unguicular scales.

小具短柔毛到后脱落有微小的鳞屑毛与具爪鳞混生的。

Ovary of female flower 2(or 3)-locular, densely yellow-brown pubescent.

雌花的2(或3)，密被黄棕色短柔毛。

Anthocarp clavate, 3-3.5 mm, 5-ribbed, with viscid glands and sparse pubescence, apex rounded.

假棍棒状，3-3.5毫米，5肋，具粘的腺体稀少短柔毛，先端圆形。

Stipular film is qualitative, elliptical shape wraps around needle form, grow 7-15 millimeter, tip gradually pointed, the brim has gland a tooth-like part of anything, edge nervation by fluff.

托叶膜质,椭圆状披针形,长7-15毫米,先端渐尖,边缘具腺齿,沿叶脉被柔毛。

Definition: 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.

本品为茜草科植物柔毛金鸡纳（鸡纳树）Cinchona pubescens Vahl (Cinchona succirubra Pavon)、白金鸡纳树C. calisaya (Weddell)、金鸡纳树C. ledgeriana (Moens ex Trimen)及其变种及杂交品种的完整或切段的干燥树皮。