banian tree vs banyan

banian tree and banyan both are nouns.

Word	Noun	Adjective	Verb	Adverb
banian tree	Yes	No	No	No
banyan	Yes	No	No	No

As nouns, banian tree and banyan are synonyms defined as:

banian tree and banyan: East Indian tree that puts out aerial shoots that grow down into the soil forming additional trunks

Other synonyms of banian tree include banian, banyan tree, East Indian fig tree, Ficus bengalensis, Indian banyan.

banian tree (noun)	banyan (noun)
East Indian tree that puts out aerial shoots that grow down into the soil forming additional trunks	a loose fitting jacket; originally worn in India
	East Indian tree that puts out aerial shoots that grow down into the soil forming additional trunks