Which of the following plants possesses culm

Options

A. Cuscuta
B. Zingiber
C. Bamboo
D. Cocos

Answer

To determine which of the following plants possesses a culm, we need to analyze the characteristics of each option provided. A culm is defined as an erect, unbranched stem with distinct nodes and internodes, commonly found in certain types of plants.

### Step-by-Step Solution:

1. **Understand the Definition of Culm**:
- A culm is an erect, unbranched stem that has distinct nodes (the points where leaves or branches arise) and internodes (the segments between the nodes).

2. **Analyze Each Option**:
- **Option 1: Cascuta**:
- Cascuta, commonly known as dodder, is a parasitic plant that does not have a typical stem structure like a culm. It lacks chlorophyll and relies on host plants for nutrients.
- **Conclusion**: Not a culm.

- **Option 2: Ginger**:
- Ginger is a rhizomatous plant, meaning it has underground stems (rhizomes) rather than a typical culm structure. Its stems are not erect and do not have distinct nodes and internodes in the same way as a culm.
- **Conclusion**: Not a culm.

- **Option 3: Bamboo**:
- Bamboo is a well-known example of a plant that possesses a culm. It has an erect, unbranched stem with distinct nodes and internodes, making it a perfect fit for the definition of culm.
- **Conclusion**: This is a culm.

- **Option 4: Coccus**:
- Coccus refers to a genus of small, round fruits or seeds and does not have a stem structure that fits the definition of a culm.
- **Conclusion**: Not a culm.

3. **Final Answer**:
- Based on the analysis, the plant that possesses a culm is **Bamboo** (Option 3).