The world's most dangerous tree will harm you in many ways

Somewhat unsurprisingly, the apple-like fruit that grows on the manchineel's branches has a very sweet smell, and looks harmless enough to the naked eye.

However, even a couple of bites immediately create an intense burning sensation in the mouth, as well as blisters and swelling in the throat. These effects can last for multiple hours and in some cases the consumption of the plum-sized fruit can also lead to death from severe vomiting and diarrhoea that fatally dehydrates the body.

When gathering firewood for your campsite, this tree’s bark and branches are definitely ones to avoid. Burning pieces of the manchineel lets off a toxic smoke that can lead to severe eye inflammation, temporary blindness, and significant breathing problems.

Not to mention that the tree squirts its horrible sap when you cut its branches, leaving you exposed to the toxic substance directly.

Speaking of camping, or picnicking for that matter, it isn’t wise to set up around manchineel trees - just being around them for prolonged periods of time can cause illness. In fact, some local native people used to tie enemies to the tree and leave them exposed as a form of torture.

Thankfully, these days in many places were the manchineel grows, they are marked by red crosses and warning plaques.