danewort vs elderberry bush

danewort and elderberry bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
danewort	Yes	No	No	No
elderberry bush	Yes	No	No	No

As nouns, elderberry bush is a hypernym of danewort; that is, elderberry bush is a word with a broader meaning than danewort:

danewort: dwarf herbaceous elder of Europe having pink flowers and a nauseous odor
elderberry bush: any of numerous shrubs or small trees of temperate and subtropical Northern Hemisphere having white flowers and berrylike fruit

Other hypernyms of danewort include elder.

danewort (noun)	elderberry bush (noun)
dwarf herbaceous elder of Europe having pink flowers and a nauseous odor	any of numerous shrubs or small trees of temperate and subtropical Northern Hemisphere having white flowers and berrylike fruit