/ Thesaurus / G Synonyms of genus catharanthus Find synonyms for: Noun1. Catharanthus, genus Catharanthus, dicot genus, magnoliopsid genususage: small genus of erect annual or perennial herbs native to Madagascar; widely naturalized in the tropics; formerly included in genus VincaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fortuitous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language