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Question

In China rose, the flowers are

A
Zygomorphic, hypogynous with imbricate aestivation
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B
Zygomorphic, epigynous with twisted aestivation
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C
Actinomorphic, hypogynous with twisted aestivation
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D
Actinomorphic, epigynous with valvate aestivation
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Solution

The correct option is C Actinomorphic, hypogynous with twisted aestivation
In China rose, the flowers are actinomorphic i.e., it can be divided into two equal radial halves in any radial plane passing through the centre; they are hypogynous, i.e., the gynoecium occupies the highest position, while the other parts are situated below it; they have twisted aestivation ie., one margin of petal overlaps that of the next one and so on.

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