Note:  Do not rely on this information. It is very old.

Dock Rumex

Dock (Rumex), the name commonly applied to a section of the genus Rumex, insipid herbaceous plants, many of them well-known weeds in grass land. The leaves are pinnately veined and rounded at the base; the flowers are in whorls and are generally perfect, with a six-leaved perianth, six stamens, and three styles. The nut-like little fruit is three-cornered, and superior.