Verticillate / whorled phyllotaxy is found in

Options

A. Psidium
B. Mango
C. Nerium
D. Sunflower

Answer

### Step-by-Step Solution:

1. **Understanding Phyllotaxy**: Phyllotaxy refers to the arrangement of leaves on the stem or branch of a plant. This arrangement is crucial for maximizing sunlight exposure for photosynthesis.

2. **Types of Phyllotaxy**: There are several types of phyllotaxy:
- **Alternate Phyllotaxy**: Leaves are arranged alternately at each node.
- **Opposite Phyllotaxy**: Leaves are arranged opposite each other at each node.
- **Spiral Phyllotaxy**: Leaves are arranged in a spiral manner around the stem.
- **Whorled (Verticillate) Phyllotaxy**: Three or more leaves are arranged in a circle at each node.

3. **Analyzing the Options**:
- **Cerium (Guava)**: This plant exhibits opposite phyllotaxy.
- **Mango**: This plant has alternate phyllotaxy.
- **Nerium**: This plant is known to have whorled (verticillate) phyllotaxy.
- **Sunflower**: This plant also exhibits alternate phyllotaxy.

4. **Identifying the Correct Answer**: From the analysis of the options, **Nerium** is the only plant that exhibits whorled (verticillate) phyllotaxy.

5. **Conclusion**: Therefore, the correct answer to the question is **Nerium**.