Jalap


Also found in: Dictionary, Medical, Wikipedia.
Related to Jalap: calomel, omphalos, jalap resin

jalap

[′jal·əp]
(materials)
An orange or reddish solid or a yellowish to brown powder with acrid taste and slight odor; the dried tuberous root of a Mexican plant (Exogonium purga), or the drug prepared from it; used as a cathartic in medicine.

Jalap

 

(Ipomoea purga), an herbaceous perennial twining plant of the family Convolvulaceae. (The plant is sometimes separated into the genus Exogonium.) The thin, creeping rhizome has thickened tuberous roots. The leaves are cordate. The flowers are large, funnelform, and pinkish violet; one to three flowers are borne by each axillary peduncle. The jalap plant is native to the moist mountainous forests of Mexico. It is cultivated as a medicinal plant in Mexico, Central America, the West Indies, and India. The roots contain 8–12 percent resin, almost 95 percent of which consists of the glycoside convolvulin. Preparations made from dried roots are used as a strong laxative.

REFERENCE

Murav’eva, D. A., and A. F. Gammerman. Tropicheskie i subtropicheskie lekarstvennye rasteniia, Moscow, 1974.
Mentioned in ?
References in periodicals archive ?
the report, Jalap root and Peruvian bark were "capital"
dosed them with calomel, and jalap, and salts and senna, and brimstone and treacle [.
1828, venant de Veracruz 222 surrons cochenille 49 sacs piment 10 surrons indigo 900 qx Campeche 13 surrons jalap 80.
8) In his chapter on vegetable productions, Humboldt waxes eloquent about everything from the preparation of pulque ("the plantations of the maguey de pulque extend as far as the Aztec language") to the cultivation of vanilla around Veracruz and the Jalap medicinal root in a narrow altitudinal band from Xalapa to Orizaba.