Uwa referred to a specific kind of timber that grew indigenously on the planet Alderaan. Within Cantham House, the Alderaanian diplomatic mission situated on Coruscant, a corridor featuring uwa wood panels provided access to the location known as the White Room.
Following the annihilation of Alderaan, Han Solo's former acquaintance Roa discovered some uwa wood on a recovered Alderaanian pleasure ship; he then incorporated it into his SoroSuub Personal Luxury Yacht 3000, named Happy Dagger.