Podophyllum peltatum vs herb

Podophyllum peltatum and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
Podophyllum peltatum	Yes	No	No	No
herb	Yes	No	No	No

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

Podophyllum peltatum: North American herb with poisonous root stock and edible though insipid fruit
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 Podophyllum peltatum include herbaceous plant.

Podophyllum peltatum (noun)	herb (noun)
North American herb with poisonous root stock and edible though insipid fruit	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