Abaxial midvein of leaf pubescent with brown appressed trichomes. Flower buds nearly rounded at maturity. Filaments ca. as long as or longer than petals. Ovary pubescent with appressed trichomes.

• 叶背面中脉短柔毛具棕色贴伏毛状体。成熟时的花芽近圆形。花丝约等长或长于花瓣。子房短柔毛具贴伏毛。