stone parsley vs herb

stone parsley and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
stone parsley	Yes	No	No	No
herb	Yes	No	No	No

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

stone parsley: a slender roadside herb of western Europe and Mediterranean areas that has foliage resembling parsley and has white flowers with aromatic seeds
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 stone parsley include herbaceous plant.

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

stone parsley: any plant of the genus Seseli having dense umbels of small white or pink flowers and finely divided foliage
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 stone parsley include herbaceous plant.

stone parsley (noun)	herb (noun)
a slender roadside herb of western Europe and Mediterranean areas that has foliage resembling parsley and has white flowers with aromatic seeds	aromatic potherb used in cookery for its savory qualities
any plant of the genus Seseli having dense umbels of small white or pink flowers and finely divided foliage	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests