Dicentra spectabilis vs herb

Dicentra spectabilis and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dicentra spectabilis	Yes	No	No	No
herb	Yes	No	No	No

As nouns, herb is a hypernym of Dicentra spectabilis; that is, herb is a word with a broader meaning than Dicentra spectabilis:

Dicentra spectabilis: garden plant having deep-pink drooping heart-shaped flowers
herb: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of Dicentra spectabilis include herbaceous plant.

Dicentra spectabilis (noun)	herb (noun)
garden plant having deep-pink drooping heart-shaped flowers	aromatic potherb used in cookery for its savory qualities
	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests