Psammophytes grow on

Options

A. Rocks
B. Sand
C. water
D. Acidic soils

Answer

### Step-by-Step Solution:

1. **Understanding Psammophytes**:
- Psammophytes are specialized plants that have adapted to grow in sandy environments.

2. **Identifying the Environment**:
- These plants are primarily found in deserts where sandy soils are prevalent.

3. **Characteristics of Psammophytes**:
- Psammophytes have adaptations that allow them to survive in conditions where sand is abundant.
- They possess strong, adventitious roots that help anchor them in the loose sand, preventing them from being blown away by the wind.

4. **Analyzing the Options**:
- The question provides four options: rocks, sand, water, and acidic soil.
- **Rocks**: Plants that grow on rocks are called lithophytes, not psammophytes. So, this option is incorrect.
- **Sand**: This is the correct answer, as psammophytes thrive in sandy environments.
- **Water**: Plants that grow in water are known as hydrophytes. Therefore, this option is incorrect.
- **Acidic Soil**: Plants that can grow in acidic soil are referred to as oxylophytes, making this option also incorrect.

5. **Conclusion**:
- The correct answer is that psammophytes grow on **sand**.

### Final Answer:
**Psammophytes grow on sand.**

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