Boxelder is a type of maple native to the eastern half of the US. It's found growing along waterways, often with hackberries. It's unusual as far as maples go because it has compound leaves with three or more leaflets instead of the typical simple maple leaf. Because of its leaf shape, boxelder can be confused with poison ivy when it's young, but the opposite leaf orientation along the stem is a dead giveaway. Like many other maples, the stems and branches can remain green through several years of growth. The leaves are typically lime-green in color.