golden rain vs Laburnum anagyroides

golden rain and Laburnum anagyroides both are nouns.

Word	Noun	Adjective	Verb	Adverb
golden rain	Yes	No	No	No
Laburnum anagyroides	Yes	No	No	No

As nouns, golden rain and Laburnum anagyroides are synonyms defined as:

golden rain and Laburnum anagyroides: an ornamental shrub or tree of the genus Laburnum; often cultivated for Easter decorations

Other synonyms of golden rain include common laburnum, golden chain.

golden rain (noun)	Laburnum anagyroides (noun)
an ornamental shrub or tree of the genus Laburnum; often cultivated for Easter decorations	an ornamental shrub or tree of the genus Laburnum; often cultivated for Easter decorations