Symphytum is a genus of flowering plants in the borage family, Boraginaceae. There are up to 35 species, known by the common name comfrey (pronounced ). Some species and hybrids, particularly S. officinale and S. × uplandicum, are used in gardening and herbal medicine. They are not to be confused with Cynoglossum virginianum, known as wild comfrey, another member of the borage family.
Symphytum asperum – prickly comfrey, rough comfrey
Symphytum bulbosum – bulbous comfrey
Symphytum caucasicum – Caucasian ...