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Question

A diagnostic feature for identification of Fabaceous flower is

A
tetradynamous stamens
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B
inferior ovary
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C
cruciform corolla
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D
vexillary aestivation
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Solution

The correct option is D vexillary aestivation
The main characteristic of the Fabaceae family is the vexillary or descending imbricate aestivation.

In vexillary aestivation, the posterior largest petals cover a lateral petal known as wings which in turn overlap two anterior petals known as the keel. It is also known as the papilionaceous corolla.


Hence, a diagnostic feature for identification of Fabaceous flower is vexillary aestivation.

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