Rorippa islandica vs yellow watercress

Rorippa islandica and yellow watercress both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rorippa islandica	Yes	No	No	No
yellow watercress	Yes	No	No	No

As nouns, Rorippa islandica and yellow watercress are synonyms defined as:

Rorippa islandica and yellow watercress: annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities

Other synonyms of Rorippa islandica include marsh cress.

Rorippa islandica (noun)	yellow watercress (noun)
annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities	annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities