Amanita phalloides

Meaning of Amanita phalloides: Amanita phalloides is a highly toxic fungus responsible for most fatal mushroom poisonings, with symptoms that can appear deceptively delayed after ingestion.

Definition of Amanita phalloides

Amanita phalloides, commonly called the death cap, is a species of poisonous fungus rather than a plant, found growing in soil, often near certain trees, in many regions of the world. It is responsible for a large proportion of fatal mushroom poisonings worldwide, in part because it can closely resemble certain edible mushroom species.

The mushroom contains a group of toxins called amatoxins, which interfere with a cell's ability to make proteins and cause severe damage to the liver, and in some cases the kidneys, following ingestion. A characteristic and dangerous feature of Amanita phalloides poisoning is a delay between ingestion and the onset of symptoms, often several hours, followed by gastrointestinal symptoms that can then appear to improve temporarily before liver damage becomes apparent.

Because significant organ damage may already be underway by the time symptoms are recognized, Amanita phalloides poisoning is considered a medical emergency requiring prompt evaluation once ingestion is suspected.