Don’t be deceived, that fuzzy look is only due to the high density of sharp spines covering its stem. The spines are extremely painful and very hard to remove from the skin.

This plant is part of the nightshade family and is a powerful deliriant, meaning that it can cause extremely realistic and terrifying hallucinations if ingested.

Although not technically plants, these mushrooms are some of the most toxic on Earth and are responsible for most cases of mushroom poisoning.

Small doses will cause you to puke uncontrollably. Large doses will paralyze your respiratory organs and kill you.

Officially called the Puya chilensis, this plant is native to Chile and apparently can cause medium sized animals like sheep to get tangled in its spines. The animal will often starve to death and provide the plant with nutrients.

Officially known as Aconitum napellus, just touching it can send you to the hospital. High doses (typically via ingestion) can kill you.

It’s hallucinogenic effects have been described as “terrifying and not pleasurable.”

This highly invasive plant is native to Asia, but was introduced to the United States in the 1800’s. It tends to propagate quickly and kill other plant species in the process.

While it’s not toxic, the thorns are quite terrifying. In fact, its other name is “thorny locust.”

Also known as Cicuta, this highly toxic plant, one of the most toxic in North America, looks a lot like Queen Anne’s Lace (Daucus carota). You don’t want to confuse them. Once ingested, this plant will cause nausea, vomiting, and seizures to name a few symptoms.

Although they get their name from monkeys that drink water out of the pitcher, these carnivorous plants have been known to trap and eat prey as big as small birds.

Although it’s not toxic, it’s big, invasive, and hard to remove. Furthermore, it grows really fast and can cover an entire hillside with its spikes before you even realize what happened.

Eating this attractive plant can cause everything from digestive issues to cardiac arrest and death.

This plant is toxic to both people and animals. In fact, it has been responsible for fairly heavy livestock losses in the western United States.

This plant can be toxic even if it is consumed second hand. In fact, Abraham Lincoln’s grandmother reportedly died after drinking cow milk that had been affected.

Eating the berries of this plant basically sedates your heart, leading to cardiac arrest.

It contains ricin (albeit lower levels), which prevents cells from turning amino acids into proteins. So, while it won’t stop your heart right away like some of the other plants on this list, it is deadly if untreated.

The crazy thing about this plant is that it may not cause any symptoms, but can still kill you within a few hours.

Native to Asia, this species is considered invasive in North America and Australia. In fact, it’s illegal to have it growing on your property in the latter. It’s root system has been known to damage the foundations of buildings and roads.

This plant, originally from Japan, grows well in the southeastern United States and is poisonous to both pets and humans. According to the Animal Poison Control Center, after ingestion there is a 50-70% fatality rate.

If ingested, this beautiful plant is known to cause a wide range of symptoms that affect the gastrointestinal, cardiac, and central nervous systems. In spite of its toxicity and use as a suicide agent (primarily in Asia), this plant grows freely in many school yards.

Russians used to use them (still do?) to carry out assassinations.

The sap from this plant can cause permanent scars and if it touches your eyes, blindness.

This refers to any species of flower that emits a smell resembling that of rotting flesh (there are a few).

This plant is covered in hairs that have been known to cause so much pain that allegedly people kill themselves to escape it. Interestingly enough, without the hairs, the fruit is edible.