Cassia grandis vs pink shower

Cassia grandis and pink shower both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cassia grandis	Yes	No	No	No
pink shower	Yes	No	No	No

As nouns, Cassia grandis and pink shower are synonyms defined as:

Cassia grandis and pink shower: tropical American semi-evergreen tree having erect racemes of pink or rose-colored flowers; used as an ornamental

Other synonyms of Cassia grandis include horse cassia, pink shower tree.

Cassia grandis (noun)	pink shower (noun)
tropical American semi-evergreen tree having erect racemes of pink or rose-colored flowers; used as an ornamental	tropical American semi-evergreen tree having erect racemes of pink or rose-colored flowers; used as an ornamental