Quebracho colorado (Schinopsis balansae and Schinopsis lorentzii), commonly called quebracho is an evergreen tree that grows wild in South America, mainly in Argentina and Paraguay, in dense sub-tropical forests which also include a variety of other trees and vegetation.
The dye is high in tannin, and can be used as a tannin mordant or a dye on cellulose fibers.
The name is due to its hardness, being derived from two Spanish words, quebrar and hacha, meaning the axe breaker. In fact, quebracho has been used locally for posts, telegraph poles, bridge timbers, railway ties, paving blocks and for any construction where great durability is desired. The extract will produce a golden brown color and will darken slightly on exposure to direct sunlight.