(Schinopsis balansae)
Schinopsis balansae is a hardwood tree known as willow-leaf red quebracho which forms forests in the subtropical Gran Chaco ecoregion of north-eastern Argentina, and Paraguay. It is also found in the wild Pantanal vegetation in Brazil. Some of its vernacular names are quebracho colorado chaque-o and quebracho santafesino. Other species, like Schinopsis lorentzii, bear the general name quebracho and have similar properties and uses. S. balansae shares its habitat with a species of the same genus, S. heterophylla, and the two are often confused.