Sumatran oud

Sumatran oud is a variant of Oud.

Oud, also agarwood or eaglewood, is the resin-rich heartwood primarily of Aquilaria trees, which forms after injury or fungal infection and is distilled into oil or used as wood. Its scent is very intense, warm-woody, sweet-resinous, smoky, ambery and, depending on its origin, also leathery, tobacco-like or animalic.