Foliage and leaves are two terms that are often used interchangeably, but they actually have different meanings. Foliage refers to the collective leaves of a plant, such as the leaves of a tree or shrub. It is usually used to describe the beauty of a plant in the fall when the leaves change color. The shoot system, on the other hand, refers to the leaves, stem, flower, and fruit of a plant.
A leaf is the main appendage of a vascular plant stem and is usually borne laterally aboveground. It is adapted for photosynthesis, which is the process of converting light energy into chemical energy. Leaves come in a variety of shapes and sizes and are often used to identify different species of plants.
In summary, foliage refers to the collective leaves of a plant, while the shoot system refers to the leaves, stem, flower, and fruit. A leaf is the main appendage of a vascular plant stem and is adapted for photosynthesis.