Common yarrow
A perennial meadow plant with finely divided foliage and flat-topped flower clusters.
Heracleum mantegazzianum
Русское название: Борщевик Мантегацци
A tall invasive umbellifer containing phototoxic sap. Skin exposure followed by sunlight can cause severe blistering. Avoid contact and follow official local guidance on safe control.

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) ↗Caucasus native; invasive in parts of Europe
Damp disturbed sites, riverbanks and roadsides
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.