/ Thesaurus / P Synonyms of potamogeton gramineous Find synonyms for: Noun1. variously-leaved pondweed, Potamogeton gramineous, pondweedusage: of Europe (except the Mediterranean area) and the northern United StatesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language