Which plant(s) bear/s hygroscopic (epiphytic) roots ?

Options

A. Vanda
B. Crocus
C. Trapa
D. all of the above

Answer

To answer the question of which plant(s) bear hygroscopic (epiphytic) roots, we can follow these steps:

### Step 1: Understand Hygroscopic (Epiphytic) Roots
- Hygroscopic or epiphytic roots are specialized roots that grow on the surface of other plants.
- These roots absorb moisture and nutrients from the atmosphere, including rain, air, and organic debris.

### Step 2: Analyze the Options Provided
- The options given are:
1. Vanda
2. Crocus
3. Trapa
4. All of the above

### Step 3: Evaluate Each Option
- **Vanda**: This is an epiphytic plant that possesses hygroscopic roots. These roots are used for aeration and to absorb moisture and nutrients from the environment.

- **Crocus**: This plant has contractile roots, which are different from hygroscopic roots. Contractile roots help in pulling the plant deeper into the soil.

- **Trapa**: Also known as water chestnut, this plant has assimilatory roots, which are green and submerged. These roots are not hygroscopic.

### Step 4: Conclusion
- Based on the analysis, only Vanda has hygroscopic (epiphytic) roots. Therefore, the correct answer is **Vanda**.

### Final Answer:
The plant that bears hygroscopic (epiphytic) roots is **Vanda**.

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