Bai-Wei

Also known as: Pai-Wei

Botanical Overview

Bai-Wei (Cynanchum atratum) belongs to the Asclepiadaceae family. Limited but reliable traditional records indicate this plant has recognized medicinal applications in one or more healing traditions. This species belongs to the Asclepiadaceae family, a group of flowering plants.

Family Context

The Asclepiadaceae family is widely distributed. Notable medicinal members include:

Geographic Distribution

Bai-Wei has been recorded in 10 countries and territories worldwide, including Belgium, China, Japan, North Korea, South Korea, and others.

Traditional Uses

Bai-Wei has been traditionally used for respiratory conditions, urinary tract health, and fever management, among other applications.

Respiratory conditions.

  • Cough

Respiratory conditions are addressed through steam inhalation of the herb’s vapors or internal use as a warm tea. The hot infusion acts as an expectorant, helping to loosen phlegm and clear congestion. Some traditions combine it with honey for coughs.

Urinary tract health.

  • Diuretic

Urinary tract applications typically involve drinking the herb as a mild tea, which increases urine production and helps flush the urinary system. It may be combined with other demulcent herbs to soothe irritated tissues.

Fever management.

  • Fever
  • Febrifuge

Febrifuge preparations are typically administered as hot teas to induce perspiration, which helps the body regulate temperature. The patient is kept warm and encouraged to rest while the herb promotes sweating.

Active Compounds

Phytochemical research has identified 11 compounds in this species, including a diverse array of phytochemical classes (see the Complete Chemical Inventory below for the full list).

ⓘ Information
Information on this page is compiled from Dr. Duke’s Phytochemical and Ethnobotanical Databases (USDA ARS), a public domain resource. Consult a healthcare professional before using any herbal preparation.

Distribution and Conservation

Reported distribution: Belgium, China, Japan, North Korea, South Korea, Mongolia, Russia, Taiwan, United States, Unknown.

Complete Use Records

CategoryCultural Context
DiureticChina, Elsewhere
CoughChina
FeverChina
HematuriaChina
UrethritisChina
AnemiaChina
FebrifugeElsewhere
PuerperiumChina

Complete Chemical Inventory

CompoundFormulaMW
ARSENICAs74.92159 Da
CALCIUMCa40.08 Da
COPPERCu63.55 Da
CYNANCHOL
IRONFe55.84 Da
MAGNESIUMMg24.305 Da
MANGANESEMn54.93804 Da
MERCURYHg200.59 Da
POTASSIUMK39.0983 Da
SODIUMNa22.9897693 Da
ZINCZn65.4 Da

Data from PubChem (NIH/NLM, public domain).


References & Further Reading

External Research Links

Data Sources