Tangle seaweed on the beach at Druridge Bay, Northumberland
Laminaria hyperborea is a species of large brown alga, a kelp in the family Laminariaceae, also known by the common names of tangle and cuvie. It is found in the sublittoral zone of the northern Atlantic Ocean. A variety, Laminaria hyperborea f. cucullata(P.Svensden & J.M.Kain, 1971) is known from more wave sheltered areas in Scandinavia.