Comfrey
Symphytum officinale
About Comfrey
Comfrey (Symphytum officinale) is a herb used in the Western Herbalism and Celtic & Norse Herbalism traditions to help with Wound Healing, Bone Health, Arthritis, and Back Pain, among 1 other condition it addresses. The root and leaves are the parts traditionally used, applied topically.
Botanical background
Symphytum officinale is a perennial flowering plant of the genus Symphytum in the family Boraginaceae. Along with thirty four other species of Symphytum, it is known as comfrey. To differentiate it from other members of the genus Symphytum, this species is known as common comfrey or true comfrey. Other English names include Quaker comfrey, cultivated comfrey, boneset, knitbone, consound, and slippery-root. It is native to Europe and it is known elsewhere, including North America, as an...
Source: Wikipedia, via iNaturalist

