orchid tree vs Bauhinia variegata

orchid tree and Bauhinia variegata both are nouns.

Word	Noun	Adjective	Verb	Adverb
orchid tree	Yes	No	No	No
Bauhinia variegata	Yes	No	No	No

As nouns, orchid tree and Bauhinia variegata are synonyms defined as:

orchid tree and Bauhinia variegata: small East Indian tree having orchid-like flowers and hard dark wood

Other synonyms of orchid tree include mountain ebony.

orchid tree (noun)	Bauhinia variegata (noun)
small East Indian tree having orchid-like flowers and hard dark wood	small East Indian tree having orchid-like flowers and hard dark wood