Phytolacca dioica, commonly known as ombú, is a massive deciduous tree native to the Pampa of South America. It has an umbrella-like canopy that spreads to a diameter of 12 to 15 meters (40 to 50 feet) and can attain a height of 12 to 18 meters (40 to 60 feet). Because it is derived from herbaceous ancestors, its trunk consists of anomalous secondary thickening rather than true wood. As a result, the ombú grows fast but its wood is soft and spongy enough to be cut with a knife. These properties have ...