horse cassia vs pink shower

horse cassia and pink shower both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse cassia	Yes	No	No	No
pink shower	Yes	No	No	No

As nouns, horse cassia and pink shower are synonyms defined as:

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

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

horse cassia (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
East Indian tree having long pods containing a black cathartic pulp used as a horse medicine