leaf blade broadly ovate, ovate-elliptic, or oblong, 6-9 X 4-6 cm, base subcordate to rounded, margin coarsely double serrate.

• 宽卵形，卵状椭圆形，或长圆形的叶片，4-66-9X厘米，基部近心形到圆形，粗重锯齿的边缘。