Plants are basically known as friendly nature species because of their beautiful and attractive look, but in this article we will tell you about top ten deadliest plants in the world which can even harm human beings. In this universe every living being is fear of predators that’s why God has given some defensive weapons to every living being but in case of plants to protect themselves from herbivorous animals some plants have physical defenses like thorns, spines, prickles some have bitter taste and most common protection they have is  poison. It is also a well known fact that most of the poisonous plants have medical benefits and they are used to treat many kinds of dangerous diseases but their damage proportion is more than their benefit. So here is the list of top ten poisonous plants in the world, take a look below to boost your knowledge about these plants:


10. Water Hemlock (Cicuta)

Water hemlock which is also known as “Cicuta” is one of North America’s most poisonous plants; it is very poisonous and harmful to humans. It grows in wet meadows and other wet and marshy areas, it gain upto maximum height of 2.5 meters, it has small flowers with green or white petals clustered in an umbrella shape mostly in spring or summer season. The name of this plant resembles with powerful poison called “Hemlock” which is incredibly toxic to human, the main symptoms caused by it are immediate seizures, nausea, vomiting, abdominal pains, tremors and confusion.


9. Doll’s eyes

Doll’s eyes is native to eastern North America and the Midwestern and Eastern United States, its binomial name is Actaea pachypoda. According to a report the entire plant and the white fruit on it both are considered as highly poisonous to human beings but harmless to birds. The maximum growth of this plant is 2 feet tall and 3 feet wide, the white berries on it contain cardiogenic toxins which can cause sedative effect on human cardiac muscle tissue.


8. English Yew

English Yew is another most poisonous plant in the world, its binomial name is Taxus baccata and it is native to western, northwest Africa, northern Iran and southwest Asia. Its approximately growth is about 10 to 28 meters tall and 2 to 4 meters in width, all parts of this plant are poisonous especially leaves which are flat and dark green in color. As per narration it is said that many many years ago in the ancient world the defeated tribes took their lives by eating poisonous yew tree rather than surrender to enemy.


7. White Snakeroot

White snakeroot is one of the most poisonous plants in the world, its binomial name is Ageratina altissima and it is native to eastern and central North America. These plants are approximately 1.5 meters tall they grow in woods and they bloom in mid to late summer. Cattle who graze on white snakeroot plants their meat and milk become contaminated with the toxin called tremetol which can cause milk sickness to humans after drinking milk of that cow or goat.


6. Crab’s Eye

Crab’s eye is very poisonous which is very well known all around the world and it is native to India and grows in tropical and subtropical areas of the world. This plant contains reddish seeds which are very toxic but beside this fact these seeds are used as beads and in some of the musical instruments. The symptoms occurred by this plants are nausea, vomiting, convulsions, liver failure, and death, it is very fatal for horses.


5. Castor Bean

Castor bean is very fatal plant which is native to tropical regions, Eastern Africa, and India, its binomial name is Ricinus communis. Castor seed is used in making of castor oil which is very useful but castor seed also contains a toxic poison called “Ricin” which is even present in whole plant, its small amount can kill a child. It can trigger allergic reactions by inhaling after mixing its pollen in air, it is also said that its 4 to 8 seeds can kill an average adult.


4. Belladonna

Belladonna which is also known as “Deadly nightshade” is native to Europe, North Africa, and Western Asia, its binomial name is “Atropa belladonna”. The growth of this plant is approximately 2 meters tall and it contains fruit called berries which are highly toxic and green, ripening to a shiny-black in color. It has very long history according to a narration the ancient Romans used this plant as a poison to kill enemies and to make poison tipped arrows, it was also used as an anesthetic for surgery.


3. Tobacco

Tobacco is very well known and highly used plant all over the world, dry tobacco leaves are mainly used in cigarettes and they are also used as chewing tobacco and dipping tobacco etc. It has very long history according to a report its cultivation started around 1400-1000 BC, excessive use of tobacco can damage heart, liver, and lungs of humans.


2. Oleander

Oleander is one of the most poisonous plants in the world, its binomial name is “Nerium oleander” and its maximum growth is approximately 2 to 6 meters tall. It is native to Mauritania, Morocco, Portugal, Sahara, Arabian Peninsula and southern Asia, it can fatally effect to gastrointestinal, Cardiac and Nervous systems of human beings.


1. Wolfsbane

Wolfsbane is the most poisonous plants in the world, its binomial name is “Aconitum lycoctonum” and it is native to Europe and northern Asia. It has 18 to 25 mm long flowers which are dark violet in color, which consists of very large quantity of a poison called “alkaloid pseudaconitine”. According to a report large dose of this toxic take 2 to 6 hours to kill an average adult that’s why it is considered as the most poisonous plant in the world.

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