Flaxseed is called. They are small seeds, flattened ovoid, shiny and brownish in colour, used since ancient times for food and medicinal purposes, to make flour or extract linseed oil, rich in fatty acid, used in food, industry and traditional medicine. Mi tierra de Aliste poultices of flaxseed is used to assuage the pain of back, joints or any part of the body, for bronchitis and respiratory problems. In June the linares of the bank looked like pieces of blue sea.