6 Most Dangerous Plants on Earth

Deadly Nightshade (Belladonna) - A small amount of its berries can be fatal. It affects the nervous system and causes hallucinations.

Rosary Pea (Abrus precatorius) - Its red seeds contain abrin, a toxin more deadly than ricin. Even one crushed seed can kill.

Oleander - Beautiful but deadly, all parts of this plant are toxic. It can cause heart failure if ingested.

Manchineel Tree - Dubbed the world’s most dangerous tree. Its sap causes burns, and standing under it in rain is harmful.

Water Hemlock - Often mistaken for parsley, it’s one of North America’s most toxic plants. It attacks the nervous system.

Castor Bean Plant - It produces ricin, a potent toxin. Just a few beans can be lethal if chewed and swallowed.