mangel-wurzel vs Beta vulgaris

mangel-wurzel and Beta vulgaris both are nouns.

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

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

mangel-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 mangel-wurzel include beet, common beet.

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