Question

What is a sunken stomata?

Answer 1

Essentially stomata sunk into the leaves.

Explanation:

They are found in plants below the surface of the leaves or the epidermis. This adaptation makes plants living in environments where water is scarce (example: in beaches or in deserts). The stomata are embedded into inner leaf layers rather than on the surface of the leaf. This is quite helpful in controlling the excessive water loss due to transpiration.