 The leaves are 9–19 cm (3–8 in) long and 2–4 cm (0.75-1.5 in) broad.The flowers are 2.5–3 cm (1 in) diameter, white, pink or pale purple, often with small greenish-yellow spots.The fruit is a dry capsule 15–20 mm (.60-.79 in) long, containing numerous small seeds.