The periderm replaces the epidermis, and acts as a protective covering like the epidermis.

Trichomes or hairs grow out from the epidermis in many species.

The epidermis is the outer layer of skin that keeps vital fluids in and harmful bacteria out of the body.

In stems the cortex is between the epidermis layer and the phloem, in roots the inner layer is not phloem but the pericycle.

As the stems grow a layer of cells form under the epidermis, called the cork cambium, these cells produce cork cells that turn into cork.

The epidermis is a layer of cells that cover the plant body, including the stems, leaves, flowers and fruits, that protects the plant from the outside world.