Koa is a type of tree native to the Hawaiian Islands, known for its tall stature and beautiful, curly wood. It can grow up to 100 feet high and is often found in the rainforests of Hawaii. The tree thrives in warm, humid conditions and plays a vital role in the local ecosystem. The wood of the Koa tree is highly valued for its rich color and durability, making it popular for crafting furniture, musical instruments, and decorative items. Due to overharvesting and habitat loss, Koa trees are now considered a threatened species, prompting conservation efforts to protect them.