Rumex L. >
Leaf bases cordate, cuneate or rounded. Inner perianth segments leathery, often toothed, not inflated Rumex
Inner perianth segments entire, tuberculate
Perianth valves broad-ovate, 3–6 mm long, cordate, reticulate, often only 1 of the 3 bearing a well developed tubercle. Flower clusters many-flowered, close together, leafy only near the base of the stems, in a long dense panicle with erect branches. Lower leaves oblong, with crisped edges. Widespread. Weed of cultivation, waste places and pastures. Introd. from Europe and Asia. Curled Dock Rumex crispus