Great Water Dock.
THIS is the largest of all the dock kinds; they have a general resemblance of one another, but this is most of all like to the last described, in its manner of growth, though vastly larger. It is frequent about waters, and is five or six feet high. The stalks are round, striated, thick and very upright, branched a little and hollow. The leaves are vastly large; of a pale green colour, smooth, and sharp at the point. The flowers are small, and of a greenish colour with some white threads, and they afterwards become brown. The root is large, long, and of a reddish brown.
It is a good remedy in the scurvy. The root contains the greatest virtues, and it is to be given in diet drinks. The seeds of this, and all other docks, are astringent, and good against purgings.