View your list of saved words. (You can log in using Facebook.)
Any of the flowering plants that make up the genus Ailanthus, in the quassia family (Simaroubaceae), native to eastern and southern Asia and northern Australia and naturalized in subtropical and temperate regions elsewhere. Ailanthus leaves alternate along the stem and are composed of multiple leaflets arranged along an axis. The most familiar species is the tree of heaven.
This entry comes from Encyclopædia Britannica Concise. For the full entry on ailanthus, visit Britannica.com.