Rumex sanguineus var sanguineus

Red sorrel, Blood dock. Perennial from Europe and Asia, growing to 1 m (3 ft) high, with red-veined leaves. The young leaves make a good cooked vegetable and can be added raw to salads. The roots are used medicinally. A good mineral accumulator. Any soil in sun or part shade; hardy to -20°C. May self-seed.