Vorontsov are among the most toxic of the family Ranunculaceae. They are found in mixed and coniferous forests, usually on the edges. This is a perennial plant with thick-headed rhizomes, which runs on one or several stems up to 70 cm tall. Leaves are compound, twice – trizhdytroychatye. The flowers are small, white, clustered in an oval brush that the formation extends into the cylindrical fruits. Vorontsov flowering occurs in May – June, fruits ripen in August – September. In Varanets pointed black berries have krasnoplodnogo – red. In the old days of the ripe fruit brewed black dye for wool. Crow color – black, hence the "Voronet." Know how to cook out of the berries and solid ink. The young leaves and twigs Varanets give red paint.
Brush bright fruits look very impressive and may be available to children, which is very dangerous. All parts of the plant are toxic, poisonous and does not disappear entirely, even when dried. In Vorontsov very strongly expressed local irritant effect, and came into contact with them areas of skin quickly arise bubbles. Mucous membranes may also be damaged, as in the action of other plants in the family Ranunculaceae.