Palmaria palmata (Linnaeus) Kuntze

Palmaria palmata

Description: Growing as a flat blade from a discoid holdfast and dividing into a few broad segments to a maximum length of 50 cm and branching from the margins. Dark brownish-red.

Habitat: Common. Epilithic or epiphytic especially on Laminaria stipes. Lower littoral and sublittoral to about 20 m on all except the most exposed rocky shores.

Distribution: Generally distributed around the British Isles. Europe: Portugal, Atlantic coasts of Spain and France, Baltic Sea, Norway, Faroes, Spitzbergen and Iceland. Greenland. Atlantic coasts of North America: Canada, Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut and New Jersey. Further afield: Arctic Sea from the White Sea and Baffin Bay. Pacific coasts of North America, Alaska to California, Japan and Korea.

Similar Species: Dilsea carnosa is similar but very leathery, usually undivided although older blades may split.

Key Identification Features:

Distribution Map: NBN map : National Biodiversity Network mapping facility, data for UK.

WoRMS: Species record : World Register of Marine Species.

iNaturalist: Species account : iNaturalist World Species Observations database

 Morton, O. & Picton, B.E. (2016). Palmaria palmata (Linnaeus) Kuntze. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://www.habitas.org.uk/marinelife/species.asp?item=ZM2420 Accessed on 2024-03-01

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