Symphytum is a genus of flowering plants in the borage family, Boraginaceae, known by the common name comfrey. There are 59 recognized species. Some species and hybrids, particularly S. officinale, Symphytum grandiflorum, and S. × uplandicum, are used in gardening and herbal medicine. They are not to be confused with Andersonglossum virginianum, known as wild comfrey, another member of the borage family.

Boraginaceae, the borage or forget-me-not family, includes about 2,000 species of shrubs, trees, and herbs in 146 to 156 genera with a worldwide distribution.