Ailanthus derived from ailanto, an Ambonese <ref name="Ambonese"/> word probably meaning "tree of the gods" or "tree of heaven") is a genus of trees belonging to the family Simaroubaceae, in the order Sapindales (formerly Rutales or Geraniales). The genus is native from east Asia south to northern Australasia.
It is used as a medicinal plant in [[Traditional medicine]].