Beware: 7 Deadly Plants You Must Never Touch - They Can Be Fatal!

• Manchineel, the 'Tree of Death', found in Florida and Caribbean, has poisonous sap causing severe blisters; even rain dripping from leaves can burn skin.
• Gympie Gympie, the 'most dangerous plant in the world' from Australia, inflicts pain described as acid burns or electrocution, lasting months or years.
• Poison Ivy, common in North America, contains 'Urushiol' causing severe itching and burning rashes; contact can occur indirectly from contaminated items.
• Tread-Softly, with beautiful flowers, has tiny thorns that release irritating chemicals upon touch, causing pain and lasting marks.
• Hogweed from Europe and America contains 'Furocoumarin'; sap on skin exposed to sunlight causes severe blisters and can lead to permanent blindness if it enters eyes.