/ Thesaurus / G Synonyms of genus polystichum Find synonyms for: Noun1. Polystichum, genus Polystichum, fern genususage: small to medium-sized terrestrial ferns especially holly ferns; in some classification systems placed in PolypodiaceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cur Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language