 The leaves are a rounded cardioid (heart) shape, 2.5–7.5 cm diameter, rarely up to 15 cm, with a serrated margin with rounded "teeth".The flowers are produced in late spring to early summer, white in color and on a single spike-like raceme 15–25 cm long on top of a 20–50 cm tall stem.Each individual flower has five petals, and is up to 4 mm or 0.15 inches in diameter.