Fucus spiralis
（重定向自Spiral wrack）
3328.jpg")
![Fucus spiralis var. platycarpus](/Images/godic/202502/12/Fucus_spiralis_Spiral_Wrack3328.jpg")
![](/Images/godic/202502/12/Fucus_spiralis_Concarneau43328.JPG")
![Ceintures exondées de Pelvetia canaliculata (haut) et Fucus spiralis (bas) dans le haut de la zone de balancement des marées (Roscoff, Bretagne)](/Images/godic/202502/12/FucusspiralisPelvetia3328.jpg")
Fucus spiralis is a species of seaweed, a brown alga (Heterokontophyta, Phaeophyceae), living on the littoral shore of the Atlantic coasts of Europe and North America. It has the common names of spiral wrack and flat wrack.