Elder or Alder is a type of tree that is native to Europe, North America, and parts of Asia. It is a deciduous tree that can grow up to 30 meters tall and has a lifespan of up to 200 years. The bark of the tree is grayish-brown and the leaves are oval-shaped with serrated edges. The flowers are small and yellow-green in color. The fruit of the tree is a small nut that is edible. Elder or Alder is often used for timber, firewood, and medicinal purposes.