Plants up to 5 m tall. Leaves sub orbicular; margins crenate serrate. Inflorescence short pedunculate, many flowered. Calyx persistent, densely pubescent, campanulate, lobed; lobes small. Stamens 15; filaments 3-4 mm long, erect. Ovary densely woolly. Fruits capsular, clustered. Seed ellipsoid, c. 6 mm long, brown, shining.