Uricaria gambir

Uncaria gambir, the gambier or gambir, is a species in the genus Uncaria found in Indonesia.

Gambier is used in Indonesia for chewing with areca and betel, for tanning, and for dyeing. It contains many catechins which are known to have many medicinal properties and are components of Chinese herbal remedies and certain modern medicines. To make gambier, the leaves are first boiled in water. They absorb it and turn brownish in color. The leaves are then pressed mechanically to squeeze and extract liquid. This liquid is then dried into a semi-solid paste and molded into cubes, which are dried in the sun. Gambier is generally packed in 50 kilogram multilayered packing. 

from: http://en.wikipedia.org/wiki/Uncaria_gambir

Habitat:

Grow the forest or planted plantation house and yard.

Description:

Plant shrubs, 1-3 cm high. Stems upright, rounded, branching simpodial, pale brown color. Single leaf, opposite, oval form, jagged edges, base rounded, tapered tip, 8-13 cm long, 4-7 cm wide, green color. Compound interest, bell shaped, axillary, about 5 cm long, crown-shaped oval, the color purple, egg-shaped fruit, approximately 1.5 cm long, black color. Parts Used dried leaf.