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Botany Question 5 – AP-EAMCET 2025

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Choose the plants from the given list which have hypogynous flowers. Mustard. Cucumber. Brinjal. Plum. Rose. Peach. Guava. Sunflower and China Rose.

Understand the different positions of the ovary relative to other floral parts (sepals, petals, stamens).

Step 1: Understand Ovary Position in Flowers✦ Active

Floral parts are typically arranged in whorls: sepals, petals, stamens, and carpels (containing the ovary). The position of the ovary relative to the attachment points of the other floral parts (sepals, petals, and stamens) determines the flower type. A hypogynous flower is characterized by a superior ovary, where the ovary is positioned above the attachment points of the other floral organs.

💡 Teacher's Secret Hint

Remember that 'hypo-' means 'below', so hypogynous means the other floral parts are attached below the ovary, making the ovary superior.

Step 2: Analyze Floral Types of Given Plants○ Expand

Let's classify each plant from the list based on its ovary position:

- Mustard (Brassica campestris): Hypogynous (superior ovary)

- Cucumber (Cucumis sativus): Epigynous (inferior ovary)

- Brinjal (Solanum melongena): Hypogynous (superior ovary)

- Plum (Prunus domestica): Perigynous (half-inferior ovary, hypanthium present)

- Rose (Rosa): Perigynous (half-inferior ovary, hypanthium present)

- Peach (Prunus persica): Perigynous (half-inferior ovary, hypanthium present)

- Guava (Psidium guajava): Epigynous (inferior ovary)

- Sunflower (Helianthus annuus): Epigynous (inferior ovary)

- China Rose (Hibiscus rosa-sinensis): Hypogynous (superior ovary)

💡 Teacher's Secret Hint

It's helpful to associate common examples with each ovary position. For instance, members of the Brassicaceae (Mustard family) and Solanaceae (Brinjal family) often have hypogynous flowers.

Step 3: Identify Plants with Hypogynous Flowers○ Expand

Based on the analysis in Step 2, the plants from the given list that have hypogynous flowers are:

- Mustard

- Brinjal

- China Rose

Step 4: Match with the Given Options○ Expand

Now, let's compare our identified list with the provided options:

- Option 1: Guava (Epigynous) and China rose (Hypogynous) - Incorrect.

- Option 2: Mustard (Hypogynous), China rose (Hypogynous) and Brinjal (Hypogynous) - Correct.

- Option 3: Plum (Perigynous), rose (Perigynous) and Peach (Perigynous) - Incorrect.

- Option 4: Guava (Epigynous), Cucumber (Epigynous) and Sunflower (Epigynous) - Incorrect.

Therefore, Option 2 is the correct answer.

💡 Teacher's Secret Hint

Always double-check each plant in an option to ensure all members of the group fit the criteria.

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