water pepper

== English == === Pronunciation === === Noun === water pepper (plural water peppers) A plant of species Persicaria hydropiper. Synonyms: arsesmart, marshpepper knotweed, hydropiper (archaic) ==== Translations ==== === References === “water pepper”, in OneLook Dictionary Search. Persicaria hydropiper on Wikipedia.Wikipedia Persicaria hydropiper on Wikispecies.Wikispecies Category:Persicaria hydropiper on Wikimedia Commons.Wikimedia Commons