Death cap
Contains amatoxins that can cause life-threatening liver damage.
Amanita virosa
Русское название: Мухомор вонючий
A white, potentially deadly Amanita containing amatoxins. Pure white colour can create false reassurance, especially in inexperienced foragers. If ingestion is suspected, seek urgent medical guidance without waiting for illness.

Never decide to eat a wild mushroom from a photograph or online description. A mistake can be fatal. For mushroom ingestion or suspected poisoning, contact emergency medical services or a poison centre immediately, even if symptoms have not appeared.
Irish Poisons Centre mushroom safety ↗Europe, especially northern temperate regions
Coniferous and mixed forests
Images and brief descriptions are for learning, not for reliably identifying a specimen. Take particular care with poisonous plants and mushrooms.
Identification is never guaranteed by a photo. Scientific names are used to reduce confusion between local names.