chard plant vs beet

chard plant and beet both are nouns.

Word	Noun	Adjective	Verb	Adverb
chard plant	Yes	No	No	No
beet	Yes	No	No	No

As nouns, beet is a hypernym of chard plant; that is, beet is a word with a broader meaning than chard plant:

chard plant: beet lacking swollen root; grown as a vegetable for its edible leaves and stalks
beet: biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop

Other hypernyms of chard plant include Beta vulgaris, common beet.

chard plant (noun)	beet (noun)
beet lacking swollen root; grown as a vegetable for its edible leaves and stalks	round red root vegetable
	biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop