10 Most Poisonous Plants In The World

This plant's roots, leaves and seeds contain aconitine, a toxin that affects the nervous system.

Aconite

If consumed, this plant can affect the heart and can cause seizures and death.

Oleander

All parts of this plant can cause hallucinations, convulsions and death.

Nightshade

Called 'Tree of Death' due to its highly toxic sap, this plant can cause severe skin irritation and blistering.

Manchineel Tree

One of the deadliest plants in North America, ingesting just a small amount of it can be lethal.

Water Hemlock

Known as poison ivy, its leaves and stems contain urushiol, an oily resin that causes redness and blistering.

Toxicodendron

The leaves, seeds, and flowers contain atropine which can cause hallucinations and death.

Datura

The seeds contain neurotoxin that affects the nervous system and can cause muscle spasms and death.

Strychnine Tree

It is highly toxic and can lead to heart problems.

Lily-Of-The-Valley

The beans are extremely toxic and can cause serious harm, even death, if ingested.

Rosary Pea