Leaf petiole glabrous or subglabrous. Leaf and bract blade central segment obovate, apex 3-lobulate or 3-dentate; lateral segments unequally 2-lobed or 2-lobulate, or entire.

• 叶柄无毛或近无毛。叶子和苞片中心裂片倒卵形，先端具3小裂片或者3具牙齿；不相等的侧裂片2裂的或2具小裂片，或全缘。