Question

what is the name of upper layer of stem​

Answer 1

Answer:

A cortex is an outer layer of a stem or root in a plant, lying below the epidermis but outside of the vascular bundles.

Answer 2

The epidermis is the upper layer of the stem.

• The epidermis is made of a layer of cells to protect the tissues underneath.
• It covers stem, roots, leaves, seeds, etc.
• In some plants, especially woody plants, there is one more layer above the epidermis known as the bark.
• The bark is made of different types of cells known as cork. This extra layer is present for added protection in woody plants.