orange milkwort vs yellow milkwort

orange milkwort and yellow milkwort both are nouns.

Word	Noun	Adjective	Verb	Adverb
orange milkwort	Yes	No	No	No
yellow milkwort	Yes	No	No	No

As nouns, orange milkwort and yellow milkwort are synonyms defined as:

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

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

orange milkwort (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