Yin Chen Hao

Artemisia capillaris

Physical Characteristics

Artemisia capillaris is a deciduous Shrub growing to 0.5 m (1ft 8in) by 0.5 m (1ft 8in). See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from August to October, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought. The plant can tolerates strong winds but not maritime exposure.

Distribution

E. Asia - China, Japan, Korea, Manchuria.

Habitats

Cultivated Beds;

Edible Uses

Edible Parts: Leaves Edible Uses: Leaves and stems - soaked and boiled[177].

Medicinal Uses

Antibacterial Anticholesterolemic Antiviral Cholagogue Diuretic Febrifuge Hepatic Vasodilator Yin Chen Hao has been used in Chinese herbal medicine for over 2,000 years. It is considered to be a bitter and cooling herb, clearing "damp heat" from the liver and gall ducts and relieving fevers[254]. It is an effective remedy for liver problems, being specifically helpful in treating hepatitis with jaundice[254]. Modern research has confirmed that the plant has a tonic and strengthening effect upon the liver, gallbladder and digestive system[254]. The leaves and young shoots are antibacterial, anticholesterolemic, antiviral, cholagogue, diuretic, febrifuge and vasodilator[147, 176, 178, 218]. An infusion is used internally in the treatment of jaundice, hepatitis, gall bladder complaints and feverish illnesses[238]. Externally it has been applied in the form of a plaster for treating headaches[254]. The plant is harvested in late spring and can be dried for later use[238]. Yin Chen Hao is contraindicated for pregnant women[254].

Known Hazards

Although no reports of toxicity have been seen for this species, skin contact with some members of this genus can cause dermatitis or other allergic reactions in some people[222].