Common comfrey

Symphytum officinale

"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. It is native to Europe and it is known elsewhere, including North America, as an introduced species and sometimes a weed. The flowers are mostly visited by bumblebees.
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Appearance

The hardy plant can grow to a height of 1.3 m.
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Naming

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.
Symphytum officinale Echter Beinwell Common comfrey,Geotagged,Switzerland,Symphytum officinale

Uses

"Symphytum officinale" roots have been used in the traditional Balkan medicine internally or externally for treatment of disorders of the locomotor system and gastrointestinal tract. The leaves and stems have also been used for the treatment of the same disorders, and additionally also for treatment of rheumatism and gout.

Comfrey has been used in folk medicine as a poultice for treating burns and wounds. However, internal consumption, such as in the form of herbal tea, is discouraged, as it has been highly debated about whether it can cause serious liver damage.

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