Acer negundo, also known as Box Elder and Ash-leaved Maple, is a fast-growing deciduous tree with a height of up to 75 ft and several trunks. It has green shoots with a waxy coating when young and compound leaves that usually have three to seven leaflets. This tree is fully dioecious, meaning that both male and female trees are needed for reproduction. Its preferred environment is along streams and ditches, although it does well elsewhere. In Canada, it is known as Manitoba Maple or Elf Maple. This tree's wood is rather brittle, and it has been used for various decorative applications such as turned items and bowls. Native Americans have also used this tree in various ways, such as making tubes for bellows and using the sap to make sugar.