white zinnia vs Zinnia acerosa

white zinnia and Zinnia acerosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
white zinnia	Yes	No	No	No
Zinnia acerosa	Yes	No	No	No

As nouns, white zinnia and Zinnia acerosa are synonyms defined as:

white zinnia and Zinnia acerosa: subshrub with slender woolly stems and long narrow leaves and flower heads with white rays; southern United States and northern Mexico

white zinnia (noun)	Zinnia acerosa (noun)
subshrub with slender woolly stems and long narrow leaves and flower heads with white rays; southern United States and northern Mexico	subshrub with slender woolly stems and long narrow leaves and flower heads with white rays; southern United States and northern Mexico