Cinnamomum cassia vs cassia-bark tree

Cinnamomum cassia and cassia-bark tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cinnamomum cassia	Yes	No	No	No
cassia-bark tree	Yes	No	No	No

As nouns, Cinnamomum cassia and cassia-bark tree are synonyms defined as:

Cinnamomum cassia and cassia-bark tree: Chinese tree with aromatic bark; yields a less desirable cinnamon than Ceylon cinnamon

Other synonyms of Cinnamomum cassia include cassia.

Cinnamomum cassia (noun)	cassia-bark tree (noun)
Chinese tree with aromatic bark; yields a less desirable cinnamon than Ceylon cinnamon	Chinese tree with aromatic bark; yields a less desirable cinnamon than Ceylon cinnamon