Saccorhiza polyschides, common name furbellow, is a large brown algae of the lower shore and is the largest seaweed found in Europe.

[2] Saccorhiza polyschides is a large and bulky seaweed growing to 2 – 4 metres long.

These ruffles tend to dissipate wave energy and lessen the likelihood that it will be torn from the rock.

It can not tolerate desiccation and may be found in places where it is wetted by spray when uncovered by the retreating tide.

[2] Distribution including Europe: Ireland, Britain, Faroes, France, Greece, Helgoland, Isla de Alboran, Italy, Netherlands, Norway, Portugal, Scandinavia and Spain.