Which is not a rhizome

Options

A. Colocasia
B. Lotus
C. Ginger
D. Turmeric

Answer

To determine which option is not a rhizome, we need to understand what a rhizome is and analyze the given options.

### Step-by-Step Solution:

1. **Define Rhizome**: A rhizome is a type of underground stem that grows horizontally. It serves as a storage organ and a means of vegetative reproduction, allowing the plant to propagate asexually.

2. **Analyze the Options**:
- **Colocasia**: This plant is commonly known as taro and is primarily known for its edible corms rather than rhizomes.
- **Lotus**: The lotus plant has rhizomes that grow underwater and are known for their large, beautiful flowers.
- **Ginger**: Ginger is a well-known example of a rhizome, as it is the underground stem that is harvested for culinary use.
- **Turmeric**: Similar to ginger, turmeric is also a rhizome and is used for its medicinal and culinary properties.

3. **Identify the Non-Rhizome**: By comparing the options, we see that both ginger and turmeric are rhizomes, and lotus also has rhizomes. However, colocasia is primarily known for its corms, not rhizomes.

4. **Conclusion**: Therefore, the plant that is not a rhizome is **Colocasia**.

### Final Answer:
Colocasia is not a rhizome.

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