Fucus vesiculosus vs black rockweed

Fucus vesiculosus and black rockweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fucus vesiculosus	Yes	No	No	No
black rockweed	Yes	No	No	No

As nouns, Fucus vesiculosus and black rockweed are synonyms defined as:

Fucus vesiculosus and black rockweed: a common rockweed used in preparing kelp and as manure

Other synonyms of Fucus vesiculosus include bladder fucus, bladderwrack, tang.

Fucus vesiculosus (noun)	black rockweed (noun)
a common rockweed used in preparing kelp and as manure	a common rockweed used in preparing kelp and as manure