kelpwort vs Salsola soda

kelpwort and Salsola soda both are nouns.

Word	Noun	Adjective	Verb	Adverb
kelpwort	Yes	No	No	No
Salsola soda	Yes	No	No	No

As nouns, kelpwort and Salsola soda are synonyms defined as:

kelpwort and Salsola soda: bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash

Other synonyms of kelpwort include barilla, glasswort, kali, Salsola kali, saltwort.

kelpwort (noun)	Salsola soda (noun)
bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash	bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash