Tuberous comfrey

Symphytum tuberosum L. is a perennial herb belonging to the Boraginaceae family. It is commonly referred to as Tuberous comfrey. This species is native to various regions including Finland, Ireland, Norway, Sweden, Denmark, the conterminous 48 United States, Albania, Austria, the Balearic Islands, Belarus, Bulgaria, Connecticut, Czechoslovakia, France, Germany, Great Britain, Greece, Hungary, and Italy. The plant was first scientifically described in 1753.