Identification & Quality Standard
Rhizoma Zingiberis
Botanical Origin
The dried rhizomes of Zingiber officinale (Willd.) Rosc.(Zingiberaceae).
Production Regions
Primarily produced in the Chinese provinces of Sichuan, Guizhou.
Quality Requirements
Superior medicinal material has firm texture, yellowish-white fractured surface, powdery, potent aroma.
Macroscopic Features
Rhizome are irregular lumps, slightly flat, with finger-like branches, 3~7cm long, 1~2cm thick. Externally grayish-brown or pale yellowish-brown, rough, with longitudinal wrinkles and obvious ring nodes. Often remains remnants of scale leaves on the branches, which has scars of stem or bud at the apex. firm texture; fractured surface is yellowish-white or grayish-white, powdery or granular, with one obvious ring (inner cortex) and vein spots (vascular bundles) and scattered yellow oil spots. Distinctively aromatic odor; acrid and spicy taste.
