Which of the following is a xerophytic plant in which the stem is modified into a flat green and succulent structure?
A
Casuarina
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B
Opuntia
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C
Hydrilla
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D
Acacia
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Solution
The correct option is B Opuntia
Opuntia is a plant growing in dry and xeric habitats and it has a stem containing several nodes and internodes. It is modified into a flat, fleshy and thick green leaf-like structure called phylloclade. which performs the functions of photosynthesis. The leaves gets modified into spines to help in reducing transpiration.