/ Thesaurus / C Synonyms of common sunflower Find synonyms for: Noun1. common sunflower, mirasol, Helianthus annuus, sunflower, helianthususage: annual sunflower grown for silage and for its seeds which are a source of oil; common throughout United States and much of North AmericaWordNet 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