sea milkwort vs black saltwort

sea milkwort and black saltwort both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea milkwort	Yes	No	No	No
black saltwort	Yes	No	No	No

As nouns, sea milkwort and black saltwort are synonyms defined as:

sea milkwort and black saltwort: a small fleshy herb common along North American seashores and in brackish marshes having pink or white flowers

Other synonyms of sea milkwort include Glaux maritima, sea trifoly.

sea milkwort (noun)	black saltwort (noun)
a small fleshy herb common along North American seashores and in brackish marshes having pink or white flowers	a small fleshy herb common along North American seashores and in brackish marshes having pink or white flowers