Quercus sumatrana
Quercus sumatrana is an oak native to the islands of Sumatra and Borneo in Indonesia and Malaysia. On Borneo, it is reported from Sarawak, Sabah and East Kalimantan. This is a very large emergent tree up to tall, growing in mixed dipterocarp forest up to elevation. It is placed in subgenus Cerris, section Cyclobalanopsis.