2023 Manipur Morphology of Flowering PlantsPapilionaceous corolla of pea flower Medium Question 24 of 133 in Morphology of Flowering Plants

In a pea flower, five petals are arranged in a specialized manner with one posterior, two lateral and two anterior. These are named as _______, _______ and ________ respectively.

A Keel, Wings and Standard
B Vexillum, Keel and Standard
C Keel, Standard and Carina
D Standard, Wings and Keel

The answer is D.

Solution

In a pea flower, the posterior (largest) petal is called the standard (vexillum), the two lateral petals are called wings (alae), and the two anterior petals fused to form a boat-shaped structure are called the keel (carina). So the order (posterior, lateral, anterior) is Standard, Wings and Keel.

Concept Papilionaceous corolla of pea flower

Morphology of Flowering Plants in past papers

133 questions from this chapter have appeared across 26 exam years.