Dipterocarpus costatus

Dipterocarpus costatus (Khmer chhë tiël niëng, chhë tiël bangkuëy, niëng daèng krâhâm) is a species of tree in the family Dipterocarpaceae found in the Indochinese and Malay Peninsulas, including Cambodia. The tree is found in "mixed dense deciduous or half-deciduous forest of the plain and in wet dense altitude forest, up to 1200 m, on well drained rich grounds." It grows to a height of 25-40m. In Cambodia the resin is used particularly for the caulking of boats, and the preparation of torches, the wood used for work not exposed to the elements....read more on Wikipedia.