Bulnesia sarmienti, also known as guayacan or vera wood, is a tree species native to South America. It is highly valued for its dense, durable wood that is often used in the construction of furniture and decks. In addition to its common names, there are several synonyms for Bulnesia sarmienti, including guayacan blanco, palo santo, and lignum vitae. These names reflect the tree's various properties and cultural uses, such as its use as a medicinal plant and as a material for religious objects. Despite its value, Bulnesia sarmienti has been over-harvested, leading to conservation concerns and efforts to protect and manage its populations.