mangold-wurzel vs Beta vulgaris

mangold-wurzel and Beta vulgaris both are nouns.

Word	Noun	Adjective	Verb	Adverb
mangold-wurzel	Yes	No	No	No
Beta vulgaris	Yes	No	No	No

As nouns, Beta vulgaris is a hypernym of mangold-wurzel; that is, Beta vulgaris is a word with a broader meaning than mangold-wurzel:

mangold-wurzel: beet with a large yellowish root; grown chiefly as cattle feed
Beta vulgaris: biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop

Other hypernyms of mangold-wurzel include beet, common beet.

mangold-wurzel (noun)	Beta vulgaris (noun)
beet with a large yellowish root; grown chiefly as cattle feed	biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop