Cynometra cauliflora or commonly Nam-nam is a native of Malaysia, grown mainly in northern Peninsular Malaysia and can be more widely cultivated in other states, mainly in kampongs and villages. This tree belongs to the bean family. It is a small tree with a thick much branched stem. The flowers are rather small about 1.2 cm across. They appear on the stem in clusters.

Each leaf is made up of 2 leaflets, which if not examined closely may appear as 2 leaves. The leaflet is asymmetrical in shape measuring 5-15cm long and 2.5-7.5cm wide. It is shiny smooth, dark green above and paler below.

The fruits are kidney-shaped, 5-10cm long and 5cm wide.The pod does not split open readily, but a line is visible along the fruit and divides it into two. The texture of the fruit surface is rough and wrinkled, pale greenish/yellow and dull looking. The flesh is juicy and yellow in colour. It produces a smell and tastes sourish. The seeds are large.

The tree is always multiplied by seed, although it can be propagated by budding, approach grafting and other methods.