9 Most Poisonous Mushrooms That Can Kill You

By Sheetal Kumari | May 01, 2025

9 Most Poisonous Mushrooms That Can Kill You

This poisonous mushroom has amatoxins that destroy the liver and kidneys. A small bite can cause death within days if not immediately treated.

Death Cap (Amanita phalloides)

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These white mushrooms appear harmless but harbor lethal poisons. Symptoms can be delayed, providing false reassurance before leading to liver collapse and eventual death.

Destroying Angels (Amanita bisporigera, A. ocreata)

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Easily confused with edible varieties, this small mushroom harbors lethal amatoxins. It can lethally destroy internal organs within a matter of days of consumption.

Common Conecap (Pholiotina rugosa)

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Webcaps have orellanine, a slow poison that damages kidneys. Symptoms can take days to manifest, usually too late to avoid lethal damage.

Webcaps (Cortinarius species)

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A small brown mushroom that grows on decaying wood and appears innocuous. Consuming it can cause liver and kidney failure because of amatoxins.

Autumn Skullcap (Galerina marginata)

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A poisonous but uncommon mushroom, particularly in Europe. Its amatoxins cause liver failure and death, usually confused with harmless species.

Deadly Dapperling (Lepiota brunneoincarnata)

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Resembles true morels but has gyromitrin, which is metabolized into a toxin by the body. Causes seizures, liver collapse, and death.

False Morel (Gyromitra species)

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Renowned for its white spots on a red cap, it’s poisonous and hallucinogenic. In excess, it results in confusion, coma, or death.

Fly Agaric (Amanita muscaria)

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Previously thought to be edible, repeated use will cause a lethal immune response. It kills red blood cells, resulting in kidney failure and death.

Brown Roll-Rim (Paxillus involutus)

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