Subordinate species

Species name Scientific name
Knotted Wrack, Rockweed Ascophyllum nodosum
Northern claw-wrack Fucus evanescens
Serrated Wrack, Toothed Wrack Fucus serratus
Spiral wrack Fucus spiralis
Bladder Wrack Fucus vesiculosus
Bladderless bladder wrack Fucus vesiculosus var. mytili
Pod Weed, Sea Oak Halidrys siliquosa
Thongweed Himanthalia elongata
Channeled wrack Pelvetia canaliculata
Wireweed, Japweed, Strangleweed Sargassum muticum