/ Thesaurus / M Synonyms of marsh felwort Find synonyms for: Noun1. marsh felwort, Swertia perennia, herb, herbaceous plantusage: perennial of damp places in mountains of Eurasia and North America having dull-colored blue or violet flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language