coral bean tree vs Erythrina corallodendrum

coral bean tree and Erythrina corallodendrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
coral bean tree	Yes	No	No	No
Erythrina corallodendrum	Yes	No	No	No

As nouns, coral bean tree and Erythrina corallodendrum are synonyms defined as:

coral bean tree and Erythrina corallodendrum: deciduous shrub having racemes of deep red flowers and black-spotted red seeds

coral bean tree (noun)	Erythrina corallodendrum (noun)
deciduous shrub having racemes of deep red flowers and black-spotted red seeds	deciduous shrub having racemes of deep red flowers and black-spotted red seeds