/ Thesaurus / M Synonyms of marsh pea Find synonyms for: Noun1. marsh pea, Lathyrus palustris, wild peausage: scrambling perennial of damp or marshy areas of Eurasia and North America with purplish flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language