Noun poisonberry has 1 sense
  1. black nightshade, common nightshade, poisonberry, poison-berry, Solanum nigrum - Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible
    --1 is a kind of nightshade
    --1 has particulars:
     garden huckleberry, wonderberry, sunberry, Solanum nigrum guineese, Solanum melanocerasum, Solanum burbankii
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