OFFICIAL YELLOW DOCK (Rumex crispus) - is a wild crafted herb that grows naturally in northwestern North America and it draws all of its nutrients from the earth naturally. Yellow dock root is not farmed or sprayed with any kind of pesticide and its long, thin leaves are curled at the edges, which earns it the nickname curly dock. Known for its thick, yellow, fleshy roots, Yellow dock is an herb. The leaf stalks are used in salads. The root and fruits are used as medicine.