Monkshood
A striking blue-violet garden and mountain flower containing potent toxic alkaloids.
Viscum album
Русское название: Омела белая
An evergreen hemisparasite growing on host trees, often with white berries. Plant parts can cause adverse effects if ingested. Traditional associations do not mean medicinal safety.

Do not use photographs or online summaries to identify wild plants for eating or medicinal use. Some poisonous plants resemble edible species and even handling certain species can cause harm. If poisoning is suspected, contact your local poison service or urgent medical care. Do not wait for symptoms.
Poison Control: poisonous plants (US) ↗Europe and parts of western Asia
Hemisparasite growing on tree branches
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.