/ Thesaurus / C Synonyms of clematis viorna Find synonyms for: Noun1. leather flower, vase-fine, vase vine, Clematis viorna, clematisusage: scandent subshrub of southeastern United States having large red-purple bell-shaped flowers with leathery recurved sepalsWordNet 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