Culm formation occurs in 

Options

A. Onion
B. Garlic
C. Potato
D. Bamboo

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Culm":**
- The term "culm" refers to the aerial stem of certain plants, particularly grasses and some other monocots. It is important to recognize that culms are typically hollow and segmented.

2. **Identifying Plants with Culm Formation:**
- Culm formation is primarily associated with grasses and plants in the family Poaceae. This includes various types of grasses, as well as specific plants like bamboo.

3. **Characteristics of Culm:**
- Culms are characterized by being upright, segmented, and often hollow. They serve as the main stem that supports leaves and flowers in these plants.

4. **Specific Example - Bamboo:**
- Bamboo is a notable example of a plant that exhibits culm formation. In bamboo, the culm is the main stem that can be hollow or solid depending on the species. Each segment of the bamboo stem is referred to as a culm.

5. **Conclusion:**
- Therefore, the correct answer to the question "Culm formation occurs in" is **bamboo**.

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