What is the function of the integumentary tissue in the plant organism?

Covering tissue includes skin and related structures that cover and protect the bodies of plants and animals. The integumentary system of plants includes the epidermis, cuticle, plant hair and glands. The epidermis of plants is unique because it is actually two different layers of cells: the upper epidermis and the lower epidermis.

Between these two layers are two other important tissue systems – the vascular tissue system and the soil tissue system. The vascular tissue system transports water and nutrients from the roots to other parts of the plant. The soil tissue system, also called mesophyll, specializes in photosynthesis, the process by which a plant converts sunlight into usable chemical energy.