Source : WordNet®

black hellebore
     n 1: slightly hairy perennial having deep green leathery leaves
          and flowers that are ultimately purplish-green [syn: {lenten
          rose}, {Helleborus orientalis}]
     2: European evergreen plant with white or purplish roselike
        winter-blooming flowers [syn: {Christmas rose}, {winter
        rose}, {Helleborus niger}]