A plant genus of the family SIMAROUBACEAE. Members contain ailantinols and other quassinoids.

Synonyms: Sumac, China, Ailanthus, China-Sumac, altissimas, Ailanthus, China Sumac, Of Heavens, Tree, Heaven, Tree Of, txid23810, Tree Of Heavens, Ailanthus altissimas, Heavens, Tree Of, Tree Of Heaven, Ailanthus altissima, txid23809, Of Heaven, Tree