Dried ginger rhizome · Gan Jiang
Zingiber officinale Roscoe · Dried rhizome
Name and part used
Ginger is an herb with aromatic branched rhizomes, long leaves, and a spike-like inflorescence; Gan Jiang is dried rhizome, distinct from fresh ginger.
Traditional context
Warming the middle and dispelling cold/phlegm are traditional terms; never self-treat shock, acute abdominal pain, or persistent vomiting.
Modern evidence
HKBU records Gan Jiang as dried Zingiber officinale rhizome; it is not the same as fresh ginger, turmeric, or galangal.
Safety
May cause reflux or irritation; interactions with anticoagulants or diabetes medicines are possible. Use caution with gallstones, pregnancy, and surgery.
Pairing in reference texts
Gan Jiang occurs with Ren Shen, Bai Zhu, and Gan Cao in some warming formulas; ingredients and indications vary by text.
Growing, care, and harvest timing
HKBU habitat record: Cultivated all around China. Cultivated in Central, Southeast and Southwest China. Commonly found in tropical regions of Asia. Dried ginger: The medicinal materials are produced in Sichuan, Guizhou and etc. Also produced in Zhejiang, Shandong, Hubei, Guangdong and Shanxi. Ginger: produced in most parts of China Harvest and processing as recorded: Ganjiang: excavated in winter, removed fibrous roots and sediment, sun-dried or low-temperature dried. Shengjiang: collected in Oct-Dec. when stem leaves wither. Excavated rhizome, removed stem leaves and fibril
Source-recorded harvest/processing: Ganjiang: excavated in winter, removed fibrous roots and sediment, sun-dried or low-temperature dried. Shengjiang: collected in Oct-Dec. when stem leaves wither. Excavated rhizome, removed stem leaves and fibril
The reviewed source does not provide a complete species-specific sowing/growing routine, irrigation/fertilization schedule, or universal plant age. The page therefore does not infer care instructions or years to harvest; consult local cultivation guidance.
Open habitat and season source ↗FROM PLANT / SOURCE HABITAT TO DRIED MATERIAL · REFERENCE WORKFLOW
- Rửa, để ráo; cơ sở có thể luộc/chần hoặc cắt lát trước khi phơi/sấy theo tiêu chuẩn dược liệu.
- Wash and drain; facilities may blanch/boil or slice before drying to materia-medica standards.
These are post-harvest study notes, not directions to prepare a remedy for self-treatment. Processing reference ↗
How to read formula amounts
The cited sources do not provide a formula with specific amounts for this profile; no ratio is invented. Absence from the incompatibility list does not establish safety.
Habitat, season, and harvest in the HKBU botanical record
HKBU botanical record (translated summary): Flowering and fruiting dates: Flowering: August Habitat and distribution: Cultivated all around China. Cultivated in Central, Southeast and Southwest China. Commonly found in tropical regions of Asia. Dried ginger: The medicinal materials are produced in Sichuan, Guizhou and etc. Also produced in Zhejiang, Shandong, Hubei, Guangdong and Shanxi. Ginger: produced in most parts of China Harvest and processing as recorded: Ganjiang: excavated in winter, removed fibrous roots and sediment, sun-dried or low-temperature dried. Shengjiang: collected in Oct-Dec. when stem leaves wither. Excavated rhizome, removed stem leaves and fibril
Open botanical source ↗