perennial herbs of the lily family having thick toxic rhizomes
source: WordNet 3.0
any plant of the Eurasian genus Helleborus
source: WordNet 3.0
A genus of perennial herbs (Helleborus) of the Crowfoot family, mostly having powerfully cathartic and even poisonous qualities. H. niger is the European black hellebore, or Christmas rose, blossoming in winter or earliest spring. H. officinalis was the officinal hellebore of the ancients.
