Dryobalanops rappa

Dryobalanops rappa is a species of plant in the Dipterocarpaceae family. The species name is derived from Iban (kerapa = a shallow swamp) and refers to the species habitat. This species is endemic to Borneo. It is found in at least one protected areas (Gunung Mulu National Park), but is threatened elsewhere due to habitat loss.

It is an emergent tree, up to 55 m tall, found in coastal mixed peat swamp forest and in lower montane kerangas forests. It is a heavy hardwood sold under the trade names of Kapur.