Ailanthus altissima /eɪˈlænθəs ælˈtɪsɪmə/, commonly known as tree of heaven, ailanthus, varnish tree, copal tree, stinking sumac, Chinese sumac, paradise tree, or in Chinese as chouchun (Chinese: 臭椿; pinyin: chòuchūn), is a deciduous tree in the family Simaroubaceae. It is native to northeast and central China, and Taiwan.