Oils in the titan arum plant are volatilized to release its unique scent by raising the internal temperature.

References

"To produce its perfume, the plant [titan arum] raises its internal temperature several degrees above that of its surroundings and vaporises oils secreted in its heart." (Attenborough 1995:140)

Book
The Private Life of PlantsMay 26, 2017
David Attenborough

Living System/s

Organism
Titan ArumAmorphophallus titanumSpecies