Manchineel: The Caribbean 'Tree of Death' That Blisters Skin, Blinds, and Kills
The Manchineel, native to the Caribbean and nearby regions, is nicknamed the 'Tree of Death' because every part of it contains potent toxins; rain can blister skin, sap can burn eyes causing temporary blindness, and its small apple-like fruits can be deadly (one apple reportedly enough to kill 20 people), prompting warnings marked by red crosses to keep people away.