Beta vulgaris rubra vs beetroot

Beta vulgaris rubra and beetroot both are nouns.

Word	Noun	Adjective	Verb	Adverb
Beta vulgaris rubra	Yes	No	No	No
beetroot	Yes	No	No	No

As nouns, Beta vulgaris rubra and beetroot are synonyms defined as:

Beta vulgaris rubra and beetroot: beet having a massively swollen red root; widely grown for human consumption

Beta vulgaris rubra (noun)	beetroot (noun)
beet having a massively swollen red root; widely grown for human consumption	round red root vegetable
	beet having a massively swollen red root; widely grown for human consumption