7 Deadliest Plants in the World

Author - Binita Kumari

Water Hemlock

Often mistaken for edible celery, this viciously deadly plant contains lethal cicutoxin that causes convulsions, amnesia, and death.

Deadly Nightshade

This plant contains atropine and scopolamine, which can paralyze the body's muscles, including the heart. Macbeth's soldiers supposedly used nightshade wine to poison the Danes.

White Snakeroot

White snakeroot can poison livestock, and their flesh and milk can spread the toxin to humans, causing symptoms such as nausea, abdominal pain, and even death.

Castor Bean

Castor oil, made from castor beans, contain ricin, a lethal poison, which can result in severe illness or death.

Rosary Pea

Rosary peas, aka jequirity beans, contain a highly lethal protein called abrin. Even a tiny amount of 3 micrograms of abrin can cause organ failure in four days and kill an adult.


Oleander is a beautiful but deadly plant containing lethal cardiac glycosides in all its parts. Fatalities from oleander poisoning are rare due to its bitter taste.


Tobacco contains lethal alkaloids such as nicotine and anabasine. It is highly addictive and responsible for over 5 million deaths annually.

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