Tarrietia argyrodendron vs silver tree

Tarrietia argyrodendron and silver tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tarrietia argyrodendron	Yes	No	No	No
silver tree	Yes	No	No	No

As nouns, Tarrietia argyrodendron and silver tree are synonyms defined as:

Tarrietia argyrodendron (noun)	silver tree (noun)
Australian timber tree	Australian timber tree
	small South African tree with long silvery silky foliage