#nigella  any plant of the genus Nigella
  supertype:  #flower  a plant cultivated for its blooms or blossoms
  member of:  #genus_Nigella
  subtype:  #Nigella_damascena__love-in-a-mist  European garden plant having finely cut leaves and white or pale blue flowers
  subtype:  #fennel_flower__Nigella_hispanica  nigella of Spain and southern France
  subtype:  #black_caraway__blackcaraway__nutmeg_flower__Roman_coriander__Nigella_sativa  herb of the Mediterranean region having pungent seeds used like those of caraway

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