Fig. 8.—Yellow dock root.
Habitat and range.—As the common name indicates, this plant frequents swampy and wet places and banks of streams. It is found from Canada to New Jersey and Pennsylvania, and westward to Minnesota, Illinois, and Iowa.
Description.—The yellow-rooted water dock is a taller plant than either of the docks previously mentioned, its stout stem sometimes reaching a height of 6 feet. The leaves at the base of the plant are borne on long stalks, and are from 1 to 2 feet in length, but, as with the other two species, the leaves toward the top of the plant are shorter, as are also the stalks supporting them. The densely flowered clusters are not as leafy as in the preceding species mentioned. The plant flowers from July to August.