Chiretta

Swertia chirayita

Physical Characteristics

Swertia chirayita is a ANNUAL growing to 1 m (3ft 3in) by 0.5 m (1ft 8in). See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from September to October. The species is hermaphrodite (has both male and female organs). Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland). It prefers moist or wet soil.

Distribution

E. Asia - Himalayas.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Shady Edge; Bog Garden;

Edible Uses

None known

Medicinal Uses

Digestive Hepatic Malaria Stimulant Chiretta is a traditional Ayurvedic herb. A strongly bitter tonic it is an excellent remedy for a weak stomach, especially when this gives rise to nausea, indigestion and bloating, and it has also been shown to protect the liver[254]. It is perhaps best known in India as the main ingredient in mahasudarshana churna, a remedy containing more than 50 herbs[254]. The plant has an interesting chemistry, similar in many respects to Gentiana lutea, a widely used restorative tonic of the digestive system[238]. It also contains xanthones, which are reputedly effective against malaria and tuberculosis, and also amarogentin, a glycoside that may protect the liver against carbon tetrachloride poisoning[238]. The whole plant is an extremely bitter tonic digestive herb that lowers fevers and is stimulant[165, 238]. The herb has a beneficial effect on the liver, promoting the flow of bile, it also cures constipation and is useful for treating dyspepsia[4, 238]. The plant is harvested when the seed is setting and then dried for later use[4].

Known Hazards

Do not exceed recommended dose.