A rough, hairy, perennial plant of several species, of the genus Symphytum.
Root from which allantoin is extracted. Anti-inflammatory, astringent, and emollient. Contains mucopolysaccharides.
A perennial Eurasian herb Symphytum officinale has variously colored flowers and has long been used in herbal medicine. Its high allantoin contents stimulate cell growth, helping rapid healing of connective tissue, bone and cartilage.