''Acer negundo'' is a species of maple native to North America. Box elder, boxelder maple, ash-leaved maple, and maple ash are among its common names in the United States; in Canada it is commonly known as Manitoba maple and occasionally as elf maple; in the United Kingdom and Ireland it is known as ashleaf maple.
Box elder is a fast-growing, short-lived tree with opposite, compound leaves. It is sometimes considered a weedy or invasive species. It has been introduced to and naturalized.. more