Rumex hydrolapathum; Wasser-Ampfer; Rumex hydrolapathum (alte Namen) -- Familie Kn鰐erichgew鋍hse (Polygonaceae); Fluss-Ampfer; Rumex hydrolapathum Huds.; Rumex hydrolapathum; Huds.; Der Fluss-Ampfer; Rumex hydrolapathum; auch Teich-Ampfer oder Riesen-Ampfer genannt; z鋒lt zur Gattung Ampfer; Rumex; aus der Familie der Kn鰐erichgew鋍hse; Polygonaceae.; Ampfer; Rumex; ist eine Pflanzengattung aus der Familie der Kn鰐erichgew鋍hse; Polygonaceae.; Rumex hydrolapathum - old Names; Family Polygonaceae; Rumex hydrolapathum Huds.; 1. also great water dock; water dock; 1. Rumex hydrolapathum; Great Water Dock; Water Dock; Giant Water Dock; is a species of perennial herbaceous plants in the genus Rumex native to fens and freshwater banks of Europe and Western Asia. It is the tallest species in the genus.; Rumex; genus of about 200 species of annual; biennial and perennial herbs in the buckwheat family Polygonaceae. Members of this family are very common perennial herbs growing mainly in the northern hemisphere; but various species have been introduced almost everywhere. Some are nuisance weeds; and are sometimes called dockweed or dock weed; but some are grown for their edible leaves. Rumex species are used as food plants by the larvae of a number of Lepidoptera species.