Breadcrumb Home > Thesaurus > P Synonyms of paspalum distichum Find synonyms for: Noun1. knotgrass, Paspalum distichum, grassusage: low-growing weedy grass with spikelets along the leaf stemsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language