Symphytum officinale

This article is about the species. For the use of comfrey in gardening and herbal medicine, see Comfrey.

Symphytum officinale
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	(unplaced)
Family:	Boraginaceae
Genus:	Symphytum
Species:	S. officinale
Binomial name
Symphytum officinale L.
Synonyms
Symphitum officinale (orth.var.)

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 introduced species and sometimes a weed. The flowers are mostly visited by bumblebees.

Description

The hardy plant can grow to a height of 1.3 m (4 ft).

Uses

Symphytum officinale roots have been used in the traditional Balkan medicine internally (as tea or tincture) or externally (as ointment, compresses,or alcoholic digestion) 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.

External links

• Jepson Manual Treatment
• Medicinal Plants for Livestock
• Washington Burke Museum
• Photo gallery