1、 Petiole

The petiole mainly plays the role of connection, which is the connecting part between the leaf and the stem. If this part is disconnected, the leaf will have no connection with the main body and die. Its upper part is connected with the leaf, and the lower part grows on the stem. Generally, the petiole is at the base of the leaf, which is a very important part

2、 Petiole

The petiole plays a great role when the leaves are just growing. It is a small green membranous sheet growing at the base and both sides of the petiole. Generally, it grows earlier than the leaves. It can protect the young leaves and buds in the early stage of growth. Its shape is very small, but some leaves are large, and the corresponding petiole will be large. Its growth is special, because for some plants, with the subsequent growth changes, it will fall off quickly, and some will always accompany

3、 Blade

It is the most important part of the leaf. The epidermis is composed of a layer of closely arranged cells and has no color. It is transparent. It contains chlorophyll, which can synthesize nutrients needed for plant growth by absorbing sunlight