1. Leaves alternate, usually simple, petiolate; leaf blade margin entire or sometimes crenate.
叶互生,通常单叶,具叶柄;叶片边缘全缘或有时具圆齿。

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2. Upper leaf blades 5-10 cm wide corrugate base cuneate margin coarsely crenate apex obtuse veins flabellate netted.
上面叶片5 - 10厘米宽具皱褶基部楔形边缘具粗圆齿先端钝脉扇形网状。

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3. Upper leaf blades 5-10 cm wide corrugate base cuneate margin coarsely crenate apex obtuse veins flabellate netted.
上面叶片5 - 10厘米宽具皱褶基部楔形边缘具粗圆齿先端钝脉扇形网状。

来自互联网