bladderwrack vs bladder fucus

bladderwrack and bladder fucus both are nouns.

Word	Noun	Adjective	Verb	Adverb
bladderwrack	Yes	No	No	No
bladder fucus	Yes	No	No	No

As nouns, bladderwrack and bladder fucus are synonyms defined as:

bladderwrack and bladder fucus: a common rockweed used in preparing kelp and as manure

Other synonyms of bladderwrack include black rockweed, Fucus vesiculosus, tang.

bladderwrack (noun)	bladder fucus (noun)
a common rockweed used in preparing kelp and as manure	a common rockweed used in preparing kelp and as manure
similar to and found with black rockweed