The Upas Tree, Antiaris toxicaria, is truly a dendrological wonder. One claim has that the effluviant can kill a man at fifteen miles. Yet the wood is valued for veneers and the fruit, soft and edible, has been spread by humans since antiquity.
Nevertheless, it is unlikely you will want it as a houseplant or in your conservatory. No, not because of its fatal vapours. 'Upas' is from a Javanese word for 'poison.' The sap is just that, highly poisonous containing cardiac glycoside. For eons it has been utilized to anoint arrows, darts and blow darts with fatal results to the recipients.
