In papilionaceous flowers, which term denotes the inner two petals?

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Study for the Morphology of Flowering Plants Test. Enhance your understanding with multiple-choice questions, complete with explanations. Prepare for your exam!

Multiple Choice

In papilionaceous flowers, which term denotes the inner two petals?

Explanation:
In papilionaceous flowers, the corolla is arranged into three petal groups: the large top petal (the standard or vexillum), two lateral petals (the wings), and two inner petals that are usually fused to form a boat-shaped structure. This fused pair is called the keel (also known as the carina). So, the inner two petals are the keel. The wings are the side petals, the standard is the upper outer petal, and stamens are the male reproductive organs, not petals.

In papilionaceous flowers, the corolla is arranged into three petal groups: the large top petal (the standard or vexillum), two lateral petals (the wings), and two inner petals that are usually fused to form a boat-shaped structure. This fused pair is called the keel (also known as the carina). So, the inner two petals are the keel. The wings are the side petals, the standard is the upper outer petal, and stamens are the male reproductive organs, not petals.

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