Which one of the following inflorescences is found in sunflower ?

Options

A. Capitulum
B. Cyathium
C. Panicle
D. Spadix

Explanation

To determine which type of inflorescence is found in sunflowers, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Inflorescence**:
- Inflorescence refers to the arrangement and distribution of flowers on a plant. It is essentially a modified shoot that is specialized to bear flowers.

2. **Identify the Types of Inflorescence**:
- There are various types of inflorescences, including solitary, racemose, cymose, mixed, and specialized.

3. **Focus on the Sunflower Family**:
- Sunflowers belong to the Asteraceae family (also known as the Composite family).

4. **Recognize the Specific Inflorescence of Sunflower**:
- The type of inflorescence characteristic of the Asteraceae family is called "capitulum," also known as a racemose head.

5. **Describe the Structure of Capitulum**:
- In a capitulum, the peduncle is flattened to form a receptacle that bears many small, sessile flowers called florets. These florets can be of two types: tubular and ligulate.

6. **Arrangement of Florets**:
- The florets are arranged in a centripetal fashion, meaning younger florets are located towards the center and older ones towards the periphery.

7. **Identify the Characteristics of Sunflower Florets**:
- In sunflowers, the central disc florets are bisexual (tubular), while the peripheral ray florets are typically sterile (ligulate).

8. **Eliminate Incorrect Options**:
- Other options such as scythium (found in Euphorbia), panicle (common in oats and rice), and spadix (common in Colchicaceae) do not apply to sunflowers.

9. **Conclude the Answer**:
- Therefore, the inflorescence found in sunflowers is **capitulum**.

### Final Answer:
The inflorescence found in sunflower is **A. Capitulum**.