The southern part is known as the Lum Por tree, Kalum Por is a large deciduous tree about 25-40 meters high, located in the moist rainforest along the southern plains. It is a hardwood suitable for making houses, pillars, bridges. The leaves are bouquets with sub-leaves. 4 leaves, yellow flowers, forming a bouquet, resulting in a pod, 6-8 cm wide, 15-40 cm long, flat round seeds, similar to Saba seeds, propagated by seed