Iris versicolour Linn

Family ► Iridaceae.

Habitat ► On river banks, by the side of lakes, ponds. Native to Great Britain.

English ► Yellow Flag.

Folk ► Paashaanabheda (Gujarat).

Family ► Iridaceae.

Habitat ► In swamps. Native to America and Canada.

English ► Blue Flag Root, Liver Lily.

Ayurvedic ► Haimavati Vachaa.

Action ► Anti-inflammatory, astringent, cholagogue, laxative, diuretic, antiemetic, blood and lymph purifier, alterative for sluggish conditions of liver, gallbladder and glandular system.

Key application ► As laxative. (The British Herbal Pharmacopoeia.)

The rhizomes contain a volatile oil; a glycoside, iridin; acids including salicylic and isophthalic; a monocyclic C31 triterpenoid; sterols, gum, resin. Irisin is the toxic constituent of the resin. It irritates the mucous membrane, liver and pancreas.

The drug is contraindicated in pregnancy. The root powder is toxic at 2 g and fluid extract at 3.7 ml.

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