Guaicum officinale (Roughbark Lignum-vitae)

Guaicum officinale, commonly known as Roughbark Lignum-vitae, is a slow-growing evergreen tree native to the Caribbean. It is renowned for having the hardest wood of any commercial species. The tree features rough, thick bark and small clusters of purple flowers. It is highly valued for its timber, which is used in boat building, tool handles, and other applications.