hawkweed vs herb

hawkweed and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
hawkweed	Yes	No	No	No
herb	Yes	No	No	No

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

hawkweed: any of numerous often hairy plants of the genus Hieracium having yellow or orange flowers that resemble the dandelion
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 hawkweed include herbaceous plant.

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

hawkweed: any of various plants of the genus Pilosella
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 hawkweed include herbaceous plant.

hawkweed (noun)	herb (noun)
any of numerous often hairy plants of the genus Hieracium having yellow or orange flowers that resemble the dandelion	aromatic potherb used in cookery for its savory qualities
any of various plants of the genus Pilosella	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests