Which of the following is not an example of corm

Options

A. Colocasia
B. Freesia
C. Crocus
D. Zingiber

Explanation

To determine which of the following is not an example of a corm, we need to first understand what a corm is and then identify the examples provided.

### Step-by-Step Solution:

1. **Define Corm**: A corm is a swollen, underground storage organ that is typically short and vertical. It serves as a means for plants to store nutrients and energy.

2. **Identify Examples of Corms**: Common examples of corms include:
- **Colocasia** (also known as taro)
- **Freesia**
- **Crocus**

3. **Identify the Odd One Out**: The question asks for the option that is not a corm. One of the options provided is:
- **Ginger** (scientific name: Zingiber officinale)

4. **Classify Ginger**: Ginger is classified as a rhizome, which is a different type of underground stem. Unlike corms, rhizomes are elongated and can be branched, with nodes and internodes present.

5. **Conclusion**: Since ginger is a rhizome and not a corm, it is the correct answer to the question.

### Final Answer:
The option that is not an example of a corm is **Ginger**.

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