The common name for Aspidosperma is white quebracho. The quebracho tree is native to the tropical regions of South America. It is especially identified with the Gran Chaco region of Argentina, Paraguay, and Bolivia. The tree belongs to the family Apocynaceae. Its genus is schinopsis.
The bark of the white quebracho yields a substance that is used for treating asthma symptoms. Homeopathic medicine derives its Aspidosperma tincture from the bark of the white quebracho tree.