"Aspidosperma quebracho-blanco" is an unrelated tree whose common name is "quebracho blanco". It is found in large areas of central South America, particularly the Gran Chaco, where it is often the dominant species in the canopy. It is one of the most widely distributed Argentine arboreal species. Traditionally it was logged for fuel, timber and railway sleepers. While in recent times cattle ranching and soya cultivation have led to considerable habitat loss, and while there is still illegal logging, no shortage of the bark is reported. The tree has not been described as endangered: a few members of the genus "Aspidosperma" are on the IUCN Red List. but the "quebracho blanco" species is not one of them.