Dipterocarpus retusus
Dipterocarpus retusus, commonly known as hollong, is a large tree and perhaps the best known species in the genus Dipterocarpus. It is native to China, Vietnam, Philippines, Laos, Cambodia, Malaysia, Indonesia, Myanmar, and India. The tree, some tall, is found in Cambodia in dense forests of the plains, common on hillsides and along rivers and in forests between and altitude.
Hollong is the state tree of Assam and Arunachal Pradesh, India. In India, the timber is used for plywood and making various containers. In China, the timber is used in construction. Hollong is a sacred tree for Moran community of Assam.