Leaf blade is spinous in case of

Nerium

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Zizipus

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Argemone

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None of the above

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Solution

The correct option is C Argemone
Some plants have sessile leaves with an unlobed leaf blade that has dentate margins and each tooth terminated by prickle or spine. These are defensive organs. Also, it helps to reduce the rate of transpiration e.g., Acacia arabica, Prosopis juliflora and Argemone.
Thus, the correct answer is option C.

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When a leaf blade is single and undivided, the leaf is considered _________

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