Genus Schinopsis
Their common name is quebracho, from Spanish quiebra-hacha in recognition of the hardness of their wood, or more precisely quebracho colorado , to distinguish them from the "white quebracho" trees of the quite unrelated genus Aspidosperma.Species in the genus Schinopsis of plants
Schinopsis balansae - This tree can reach 24 metres in height and more than one metre in diameter. Its trunk is elegant, straight, with a brownish-gray bark. Its wood is extremely heavy . Its main use is the extraction of quebracho extract, which is 63% pure tannin.
Red quebracho - Schinopsis lorentzii is a hardwood tree, native of the Paraguayan subtropical area, which forms forests in Gran Chaco region of Argentina, in Paraguay, and Bolivia. Some of its common names are coronillo, quebracho Cornillo , quebracho chaqueño, quebracho colorado santiagueño, quebracho macho, and quebracho bolí. The qualification colorado differentiates it from other species of common quebracho tree, the Aspidosperma quebracho-blanco . The indication santiagueño is made to distinguish it from quebracho colorado chaqueño, a closely related species .