wonderberry vs poisonberry

wonderberry and poisonberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
wonderberry	Yes	No	No	No
poisonberry	Yes	No	No	No

As nouns, poisonberry is a hypernym of wonderberry; that is, poisonberry is a word with a broader meaning than wonderberry:

wonderberry: improved garden variety of black nightshade having small edible orange or black berries
poisonberry: Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible

Other hypernyms of wonderberry include black nightshade, common nightshade, poison-berry, Solanum nigrum.

wonderberry (noun)	poisonberry (noun)
improved garden variety of black nightshade having small edible orange or black berries	Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible