How are the plants adapted to water scarcity and heat? Comment.

Explanation

Plants growing in deserts are either leafless or possess succulent stems with scaly leaves (Opuntia). They have well-developed root system, stems and leaves are covered by thick epidermis and wax deposition, stomata are sunken and fewer in number. They have a special photosynthetic pathway (CAM) that enables their stomata to remain closed during day time.
Adaptation of Plants to Water Scarcity. In the scarcity of water, the leaves of the plant roll up to minimize the rate of transpiration. During rolling, the stomata remain unexposed to the sun so as to reduce the rate of transpiration. These plants may undergo special photosynthetic pathway (CAM) that enables their stomata to remain closed during the day time.