white mulberry vs Morus alba

white mulberry and Morus alba both are nouns.

Word	Noun	Adjective	Verb	Adverb
white mulberry	Yes	No	No	No
Morus alba	Yes	No	No	No

As nouns, white mulberry and Morus alba are synonyms defined as:

white mulberry and Morus alba: Asiatic mulberry with white to pale red fruit; leaves used to feed silkworms

white mulberry (noun)	Morus alba (noun)
Asiatic mulberry with white to pale red fruit; leaves used to feed silkworms	Asiatic mulberry with white to pale red fruit; leaves used to feed silkworms