Sepals and petals 5, persistent after anthesis, sepals free, entire to gland-fringed, petals entire to distally crenate, apiculus obscure or absent.

• 萼片和花瓣5，宿存在花后，萼片离生，全缘到具流苏状腺体，全缘的花瓣到上部具圆齿，细尖不明显或无。