/ Thesaurus / G Synonyms of genus hydrastis Find synonyms for: Noun1. Hydrastis, genus Hydrastis, magnoliid dicot genususage: small genus of perennial herbs having rhizomes and palmate leaves and small solitary flowers; of northeastern United States and JapanWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dispel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language