Curly dock is a winter perennial. It contains a deep fleshy tap root. In a turf situation the leaves appear in a rosette form. The leaves are actually alternate at the top of the tap root. The oblong leaves have a wavy appearance on their edges.
Individual curly dock plants can be physically eliminated from turf areas quite easily, so long as at least 2/3 of the tap root is removed.
Source: Virginia Polytechnic Institute & State University