Which one of the following is a xerophytic plant in which the stem is modified into the flat green and succulent structure? (a) Opuntia (b) Casuarina (c) Hydrilla (d) Acacia
Option A Opuntia is a xerophytic plant which lives in dry habitat. The plant has fleshy organs where water and mucilage are stored. The stem is modified into flat green structure, therefore, Opuntia is also called as phylloclades.