hedge nettle vs herb

hedge nettle and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
hedge nettle	Yes	No	No	No
herb	Yes	No	No	No

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

hedge nettle: foul-smelling perennial Eurasiatic herb with a green creeping rhizome
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 hedge nettle include herbaceous plant.

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

hedge nettle: perennial herb with an odorless rhizome widespread in moist places in Northern Hemisphere
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 hedge nettle include herbaceous plant.

hedge nettle (noun)	herb (noun)
foul-smelling perennial Eurasiatic herb with a green creeping rhizome	aromatic potherb used in cookery for its savory qualities
perennial herb with an odorless rhizome widespread in moist places in Northern Hemisphere	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests