/ Thesaurus / C Synonyms of cynodon plectostachyum Find synonyms for: Noun1. giant star grass, Cynodon plectostachyum, grassusage: perennial grass having stems 3 to 4 feet high; used especially in Africa and India for pasture and hayWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language