Polygala lutea vs yellow milkwort

Polygala lutea and yellow milkwort both are nouns.

Word	Noun	Adjective	Verb	Adverb
Polygala lutea	Yes	No	No	No
yellow milkwort	Yes	No	No	No

As nouns, Polygala lutea and yellow milkwort are synonyms defined as:

Polygala lutea and yellow milkwort: bog plant of pine barrens of southeastern United States having spikes of irregular yellow-orange flowers

Other synonyms of Polygala lutea include candyweed, orange milkwort, yellow bachelor's button.

Polygala lutea (noun)	yellow milkwort (noun)
bog plant of pine barrens of southeastern United States having spikes of irregular yellow-orange flowers	bog plant of pine barrens of southeastern United States having spikes of irregular yellow-orange flowers