Dipterocarpus gracilis (Tagalog: panao / Indonesia: kaboa aka sancang) is a critically endangered species of tree in the family Dipterocarpaceae, native to South Asia and Southeast Asia.

Distribution and habitat

D. gracilis is native to Bangladesh, Brunei, Cambodia, India (Assam and the Andaman Islands), Indonesia (Kalimantan, Java, and Sumatra), Malaysia (Sarawak, Sabah, and Peninsular Malaysia), Myanmar, the Philippines, Singapore, and Thailand. It grows in lowland evergreen and semi-evergreen forests, in valleys, and on ridges and slopes from sea level up to 900 m above sea level. It prefers well-drained soils and often dominates the canopy of the forests it inhabits.

Uses

It is often used as a commercial grade plywood, it is one of the most important sources of keruing timber.