The plate: agarwood / oud
Planche VII · Bois d’agarAgarwood / oud · Aquilaria malaccensis (also A. crassna; A. agallocha is a synonym of A. malaccensis)

Ingredients · Woods · dry-down

Oud oil (Borneo / Indonesian)

Say itOOD oil

Greener, cleaner oud—woody, earthy forest-floor with light smoke and little animality.

What it is
Natural oil from resinous heartwood of Aquilaria species.
Where it comes from
Borneo, Sumatra and Peninsular Malaysia
When you smell it
Dry-down: hours later.
What perfumers do with it
Lighter, drier oud effect for woody compositions that avoid heavy barnyard tones.
Worth knowing
Only a small share of wild trees—about 7% by one estimate—ever become infected and produce agarwood.
Rules
Limited. Aquilaria in CITES Appendix II; exports require permits.
Also called
Malaysian oud; Aquilaria malaccensis, A. microcarpa, A. beccariana

Not on the label of any of the 232 perfumes read so far.