Acer negundo, or Boxelder, is a fast-growing, deciduous tree native to a wide range across North America, thriving in riparian zones, disturbed sites, and open woodlands. It is recognized by its unique compound leaves (unlike most maples which have simple, lobed leaves) typically with 3-5 (sometimes 7-9) coarsely toothed leaflets, and greenish-yellow, inconspicuous flowers borne in drooping racemes before the leaves emerge. Its key diagnostic feature is its V-shaped paired samaras (winged seeds) that hang in clusters and mature in autumn, persisting through winter. This adaptable pioneer species frequently grows multi-stemmed and can reach heights of 10-25 meters (30-80 feet).