South American Tree is a term used to describe trees that are native to South America. Quebracho (9 letters) is a type of hardwood tree found in the Gran Chaco region of South America. BALSA (5 letters) is a fast-growing tree native to Central and South America, and is the lightest commercial wood in the world. CINCHONA (8 letters) is a genus of flowering plants native to the tropical Andean forests of western South America. Quassia (7 letters) is a genus of flowering plants native to tropical regions of the Americas. Brazilnut (9 letters) is a large tree native to the Amazon rainforest, and produces edible nuts.