Description: Thallus relatively large and variable with midrib. Receptacles flattened, relatively short and broad, not markedly elongated.

Habitat: Very rare. Sheltered shores.

Distribution: Only recorded in the British Isles from northern shores. Europe: Baltic, Norway and the Faroes. Atlantic coast of North America: Canada, Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut and Long Island, New Jersey, Delaware and Virginia. Further afield: Arctic Seas from Spitzbergen, the Murman Sea, White Sea, Kara Sea, Siberian Sea, American Arctic Sea, Baffin Island and the west coast of Greenland.

Distribution Map from NBN: Fucus evanescens at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Fucus evanescens at iNaturalist World Species Observations database.

WoRMS: Fucus evanescens at World Register of Marine Species.