On campus, they're planted alongside National Avenue and there is a lone specimen on the Southwest corner of McDonald arena. The leaves are very divided. They're pinnately compound and each leaflet is pinnately lobed. This woody family is found mostly in the tropics. There are virtually none in North America but Ailanthus has been introduced and naturalized in some areas.
Leaves are usually alternate.
This is a native of Siberia, as evident by the late arriving and early falling leaves. It has very large compound leaves with 10-16 leaflets and very large petioles. They resemble Sumac and Walnut leaves. The bark is perfectly smooth with a tinge of red and the habit is unique. Tree of Heaven forms suckers all around the parent tree, making it quite a pest.