Leaf blade ovate, broadly ovate, elliptic, elliptic-ovate or oblong-elliptic, [sometimes sparsely puberulent when young,] glabrous except on midrib.Inflorescence [subapical,] 1-flowered.

• 叶片卵形，宽卵形，椭圆，椭圆状卵形的或长圆状椭圆形，[幼时有时疏生微柔毛，]除了在中脉上无毛。