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An herbaceous perennial growing to 40–50 cm (16–20 in) in height. The leaves have pointed oval blades up to 10 cm long by 6 cm wide with wavy or toothed edges. Each is borne on a long, winged petiole. The inflorescence contains 1 to 12 flowers. It arises on a tall, erect flowering stalk. The flower corolla has five white lobes each 1 or 2 centimeters long. They are reflexed away from the flower's center, which contains one style surrounded by large reddish, purplish or black anthers containing pollen.