Fucus serratus vs serrated wrack

Fucus serratus and serrated wrack both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fucus serratus	Yes	No	No	No
serrated wrack	Yes	No	No	No

As nouns, Fucus serratus and serrated wrack are synonyms defined as:

Fucus serratus and serrated wrack: brown algae seaweed with serrated edges

Other synonyms of Fucus serratus include tang.

Fucus serratus (noun)	serrated wrack (noun)
brown algae seaweed with serrated edges	brown algae seaweed with serrated edges