Write a brief account on classification of xerophytes.

Explanation

A: Plants growing in water deficient or physiologically dry habitats Xerophytes are 3 types based on their morphology, physiology and life cycle pattern.

(1) Ephemerals : These are annuals which complete their life cycle within 6-8 weeks. They are also called drought evaders or drought escapers.
(2) Succulents: These are drought avoiding plants. They.absorb large amounts of water during rainy season and store in their parts in the form of mucilage. Those parts become fleshy and succulent Stored water is used during dry periods.
Eg : (a) Root succulents - Ceiba parviflora, Asparagus,
(b) Stem succulents - Opuntia,
(c) Leaf succulents - Bryophyllum, Aloe
(3) Non succulents - These are true xerophytes. These are perennial and withstand prolonged period of drought.
Eg : Casuarina, Nerium.