Question

Which one of the following is the specific xerophytic adaptation?

• A. Presence of spines
• B. Absence of stomata
• C. Presence of long tap root system
• D. Presence of stipular leaves

Answer 1

Answer: (C)

Presence of long tap root system is one of the specific xerophytic adaptation. Root system in xerophytic plant is well developed the root are long, branched and reach deep into the soil to absorb more water. In Alfalfa root may reach upto $130$ feet deep in soil. Stomata are less in outer epidermis and are sunken type. Presence of spine and stipular leaves are also xerophytic adaptation of plants. In opuntia leaves are modified into spine to reduce rate of transpiration.