/ Thesaurus / G Synonyms of genus rudbeckia Find synonyms for: Noun1. Rudbeckia, genus Rudbeckia, asterid dicot genususage: North American perennial herbs with showy cone-shaped flower headsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language