Virginia crownbeard vs Verbesina virginica

Virginia crownbeard and Verbesina virginica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Virginia crownbeard	Yes	No	No	No
Verbesina virginica	Yes	No	No	No

As nouns, Virginia crownbeard and Verbesina virginica are synonyms defined as:

Virginia crownbeard and Verbesina virginica: tall perennial herb having clusters of white flowers; the eastern United States

Other synonyms of Virginia crownbeard include frost-weed, frostweed.

Virginia crownbeard (noun)	Verbesina virginica (noun)
tall perennial herb having clusters of white flowers; the eastern United States	tall perennial herb having clusters of white flowers; the eastern United States