Bois jaune

Old fustic, or yellow wood, is derived from the heartwood of dyer´s mulberry, a large, tropical tree of the mulberry family, Moraceae.
Older names: Morus tinctoria, Maclura tinctoria or Broussonetia tinctoria.

The trees grow in South and Middle America, and in the warmer regions of North America. They also grow in Western India and in the Antilles. The climate in South Europe is not tropical, but it is warm enough for the Mulberry tree. Dye makers have used its bright yellow heartwood to make an effective dye.