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Question

The standard petal of papilionaceous corolla is called

A
Corona
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B
Carina
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C
Pappus
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D
Vexillum
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Solution

The correct option is D Vexillum
The Papilionaceae family corolla consists of five petals. The single large upper petal is called the banner or standard petal or vexillum. The standard, in turn, overlaps the two lateral petals called as wings which in turn overlap the two smallest anterior petals called as Keel.
So, the correct answer to the question is 'Vexillum'.

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