/ Thesaurus / B Synonyms of black hellebore Find synonyms for: Noun1. lenten rose, black hellebore, Helleborus orientalis, helleboreusage: slightly hairy perennial having deep green leathery leaves and flowers that are ultimately purplish-green2. Christmas rose, winter rose, black hellebore, Helleborus niger, helleboreusage: European evergreen plant with white or purplish rose-like winter-blooming flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language