Ascophyllum nodosum vs bladderwrack

Ascophyllum nodosum and bladderwrack both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ascophyllum nodosum	Yes	No	No	No
bladderwrack	Yes	No	No	No

As nouns, Ascophyllum nodosum and bladderwrack are synonyms defined as:

Ascophyllum nodosum and bladderwrack: similar to and found with black rockweed

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