yellow milkwort vs orange milkwort

yellow milkwort and orange milkwort both are nouns.

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

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

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

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

yellow milkwort (noun)	orange 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