Callistephus chinensis vs China aster

Callistephus chinensis and China aster both are nouns.

Word	Noun	Adjective	Verb	Adverb
Callistephus chinensis	Yes	No	No	No
China aster	Yes	No	No	No

As nouns, Callistephus chinensis and China aster are synonyms defined as:

Callistephus chinensis and China aster: valued for their beautiful flowers in a wide range of clear bright colors; grown primarily for cutting

Callistephus chinensis (noun)	China aster (noun)
valued for their beautiful flowers in a wide range of clear bright colors; grown primarily for cutting	valued for their beautiful flowers in a wide range of clear bright colors; grown primarily for cutting