Pictures of leaf paintings are as follows:

Leaves are the parts of the tree where photosynthesis takes place. Leaves can come in a variety of shapes, sizes, colors, and textures. Leaves can be gathered in clusters or scattered all over the place. The edges of the leaves can be smooth or serrated.

A complete leaf consists of the following three parts: Leaves - mostly broad and flat, suitable for receiving sunlight. Petiole - supports the leaf and connects the leaf to the stem. Stipules – protect young leaves.

There are two types of leaf veins: reticular veins - the leaf veins are interlaced to form a network. The chrysanthemums of most dicotyledonous plants have reticular veins and parallel veins - the veins are not interlaced and run roughly parallel to each other, and the chrysanthemums of most monocotyledonous plants have parallel veins.

Based on the number of leaves on the petiole, leaves can be divided into two types: simple leaves - each petiole has only one leaf and compound leaves - each petiole has many leaflets. .

Function of leaves:

Leaves serve as the tree’s main food factory. On the one hand, they maximize exposure to sunlight and freely absorb carbon dioxide for photosynthesis; at the same time, they take protective measures to prevent excess water from evaporating.

The surface of the leaf contains numerous micropores, stomata (more common on the lower surface), and ultimately a protective cortex or epidermis. The venation system acts as a "skeleton" as a transmission tissue, connecting the leaves to the stem.