bladderwrack vs Ascophyllum nodosum

bladderwrack and Ascophyllum nodosum both are nouns.

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

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

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

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