Sue Daly / Furbelows seaweed (Saccorhiza polyschides), with fronds moving in the current, Sark, British Channel Islands, UK, June.

Solvin Zankl / Furbellow (Saccorhiza polyschides) Purbeck Marine Wildlife Reserve, Kimmeridge Bay, Dorset, UK, July.

Solvin Zankl / Furbellow (Saccorhiza polyschides) Purbeck Marine Wildlife Reserve, Kimmeridge Bay, Dorset, UK, July.

Sue Daly / Furbelows (Saccorhiza polyschides) English Channel, off the coast of Sark, Channel Islands, August

Sue Daly / Furbellows holdfast (Saccorhiza polyschides) English Channel, off the coast of Sark, Channel Islands, August

Sue Daly / Furbellows holdfast (Saccorhiza polyschides) English Channel, off the coast of Sark, Channel Islands, August

Sue Daly / Furbelows seaweed (Saccorhiza polyschides) English Channel, off the coast of Sark, Channel Islands, July

Nick Upton / Colourful mix of Bushy rainbow wrack (Cystoseira tamariscifolia) with turquoise iridescent tips to its fronds and red Harpoon weed (Asparagopsis armata) surrounded by Coralweed (Corallina officinalis)...

Nick Upton / Colourful mix of Bushy rainbow wrack (Cystoseira tamariscifolia) with blue iridescent tips to its fronds and red Harpoon weed (Asparagopsis armata) surrounded by Coralweed (Corallina officinalis) Furb...

Nick Upton / Bulbous holdfast and large spreading frond of Furbellows (Saccorhiza polyschides), a large kelp, attached to rocks very low on the shore alongside Thongweed (Himanthalia elongata) and Tangleweed kelp...

Philippe Clement / Furbellow Kelp (Saccorhiza polyschides) washed ashore on beach. Brittany, France, September.

Philippe Clement / Furbellow Kelp (Saccorhiza polyschides) washed ashore on beach. Brittany, France, September.

Philippe Clement / Furbellow Kelp (Sacchoriza polyschides) washed ashore on beach. Brittany, France, September.

Philippe Clement / Bulbous holdfast of Furbellow kelp (Saccorhiza polyschides) washed ashore on rocky beach. Brittany, France.

Philippe Clement / Bulbous holdfast of Furbellow kelp (Saccorhiza polyschides) washed ashore on rocky beach. Brittany, France.

Sue Daly / Furbelows seaweed {Saccorhiza polyschides} overgrown with other algae, Sark, Channel Islands, UK

Nick Upton / Bulbous holdfast and divided frond of Furbellows (Saccorhiza polyschides), a large kelp, attached to floor of a rockpool alongside red algae: Harpoon weed (Asparagopsis armata) and Coralweed (Corallin...

Nick Upton / Bulbous holdfast of Furbellows (Saccorhiza polyschides), a large kelp, attached to rocks very low on the shore alongside Thongweed (Himanthalia elongata) and Tangleweed kelp (Laminaria digitata), near...

Nick Upton / Bulbous holdfast and large spreading frond of Furbellows (Saccorhiza polyschides), a large kelp, attached to rocks very low on the shore alongside Thongweed (Himanthalia elongata) and Tangleweed kelp...

Nick Upton / Bulbous holdfast of Furbellows (Saccorhiza polyschides), a large kelp, attached to a boulder low on a rocky shore alongside Sea lettuce (Ulva lactuca) and red algae, near Falmouth, Cornwall, UK, Augus...

Alex Mustard / Rock cook wrasse (Centrolabrus exoletus) and Spiny starfish (Marthasterias glacialis) on a submerged reef beneath Furbellows kelp (Saccorhiza polyschides), Cornwall, UK,. English Channel.

Alex Mustard / A tiny, colourful Nudibranch (Fjordia lineata) crawling across a frond of Furbellows kelp (Saccorhiza polyschides), Loch Carron, Highlands, Scotland, UK.