cry-baby tree vs Erythrina crista-galli

cry-baby tree and Erythrina crista-galli both are nouns.

Word	Noun	Adjective	Verb	Adverb
cry-baby tree	Yes	No	No	No
Erythrina crista-galli	Yes	No	No	No

As nouns, cry-baby tree and Erythrina crista-galli are synonyms defined as:

cry-baby tree and Erythrina crista-galli: small South American spiny tree with dark crimson and scarlet flowers solitary or clustered

Other synonyms of cry-baby tree include ceibo, common coral tree, crybaby tree.

cry-baby tree (noun)	Erythrina crista-galli (noun)
small South American spiny tree with dark crimson and scarlet flowers solitary or clustered	small South American spiny tree with dark crimson and scarlet flowers solitary or clustered