the plant is a very thorny bush with aromatic leaves. the oil obtained from the rind of the fruit can be used as an insecticide. the plant is well suited to being grown in a container. the green fruits are different from other limes because of their bumpy and rough exterior. they are also quite small, about 4 centimetres across. the leaves are shaped like an hourglass. the leaves and the leaf-shaped stem are widely used in the cuisine of cambodia, thailand and laos.