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Question

Papilionaceous corolla occurs in

A
Brassicaeae
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B
Asteraceae
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C
Fabaceae
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D
Poaceae
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Solution

The correct option is D Fabaceae
Papilionaceous corolla is characterised with butterfly-shape because the petals are of different sizes and they show descending pattern of imbrication. The largest posterior petal is called vexillum and it overlaps the lateral petals called wings. The wings overlap the innermost fused petals called keel or carina. It is a characteristic of the family Fabaceae.
Hence, the correct answer is 'Fabaceae'

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