A long-lived herbaceous plant with creeping stems that regularly produce roots at the joints. Its leaves are arranged in clusters along the stems and are borne on stalks 0.5-15 cm long. These leaves (1-4.5 cm long and 1.5-5 cm wide) are kidney-shaped and usually have bluntly toothed margins. Its inconspicuous pink or purplish flowers are arranged in small clusters. Its small fruit (2.2-5 mm wide) are ribbed and split into two one-seeded segments when mature.