Koa is a type of tree native to the Hawaiian Islands, known for its beautiful, rich wood. It can grow up to 100 feet tall and has a distinctive, curved trunk. The wood of the Koa tree is highly valued for its strength and durability, making it popular for crafting furniture, musical instruments, and canoes. In addition to its practical uses, Koa trees play an important role in Hawaiian culture and ecology. They provide habitat for various native species and are often associated with traditional Hawaiian practices. The tree's leaves and flowers also contribute to the unique beauty of Hawaii's landscapes.