Wolf's-bane (Aconitum lycoctonum) belongs to the buttercup family
Ranunculaceae. A species of flowering plant in the genus Aconitum, of the family Ranunculaceae, native to much of Europe and northern Asia.

Lycoctonum is a rendering in modern Latin of the traditional name "wolf's-bane"

It is an herbaceous perennial plant growing to 1 m tall. The leaves are palmately lobed with four to six deeply cut lobes. In many places the flowers are purple but in the Apennines many populations are all pale yellow
Like all species in the genus, it is poisonous. Terminillo, Rieti, Lazio, Italy July 2020