Tree of Hell Ailanthus altissima
This is a fast growing deciduous tree from China that can grow 20m or more. It has smooth stems with pale grey bark, and twigs which are light chestnut brown, especially in the dormant season. In late spring, clusters of small, yellow-green flowers appear near the tips of branches. Seeds are produced on female trees in late summer to early autumn. Fruits are papery, somewhat twisted, winged structures called samaras that are tan to pink coloured. It belongs to the Simaroubaceae family.