1. Leaf
The leaf of the naked leaf grows alternately, with heart-shaped, wide-ovary or kidney-shaped, grows at 3-5 cm, width is 3-5 cm, and the upper leaves gradually become smaller. The top is sharp.The shape of the earlobe, the edge of the leaves has not obvious thin round teeth, and there are obvious mesh on the back. Generally, there are three main veins. The petiole is about 3 cm.
Two, flowers
The naked flower is a total inflorescence that grows at the upper end of the stem, and the leaves are the shape of the raw. The length is about 12 cm.The naked flowers are relatively small, and the bracts are also very small. It grows ovate. The flowering period is from June to September. From midsummer to early autumn, the flowers will be turned true.
