About Schinopsis lorentzii (Griseb.) Engl.
Schinopsis lorentzii (Griseb.) Engl. is a species of flowering plant in the family Anacardiaceae. It is a hardwood tree commonly called red quebracho, native to the Paraguayan subtropical area, where it forms forests in the Gran Chaco region of Argentina, Paraguay, and Bolivia. Some of its other common names are coronillo, quebracho cornillo (Brazil), quebracho chaqueño, quebracho colorado santiagueño, quebracho macho, and quebracho bolí. The descriptive term colorado, meaning "red", differentiates this species from another common quebracho tree, Aspidosperma quebracho-blanco (quebracho blanco, "white quebracho", in the family Apocynaceae). The additional descriptor santiagueño, meaning "from Santiago del Estero", distinguishes it from quebracho colorado chaqueño, the closely related species Schinopsis balansae. This tree is considered a symbol of the Gran Chaco region. It is commercially very important because of its extremely hard and durable wood, and because it produces tannin. The tanning industry has exploited quebracho forests for more than 100 years. This large-scale exploitation has caused the loss of 85% of the original quebracho forests in Argentina.