English: Bladder wrack; Bladderwrack; Black tang; Rockweed; Bladder fucus; Sea oak; Black tany; Cut weed; Dyers fucus; Red fucus; Rock wrack.
Botany: seaweed; Chromalveolata;
Heterokontophyta;
Phaeophyceae;
Fucales;
Fucaceae; Fucus.
Content: iodine.
TaxonomyFucus does not belong to the Archaeplastidae but is member of the Chromalveolata. It is placed here as it is very similar to the algae in behaviour.