The stalk of the inflorescence in onion is called

Options

A. Receptacle
B. Carpophore
C. Torus
D. Scape

Answer

To answer the question, "The stalk of the inflorescence in onion is called," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Inflorescence Structure**:
- In flowering plants, the inflorescence refers to the arrangement of flowers on a stem. The stalk that supports this arrangement is crucial for understanding the plant's morphology.

2. **Focus on Onion Plant Characteristics**:
- The onion plant (Allium cepa) is known for its unique flowering structure. It produces a flowering stalk that is distinct from typical flowering plants.

3. **Define the Stalk of Inflorescence**:
- The stalk of the inflorescence is specifically referred to as the "scape" in the case of the onion. This is a leafless flowering stem that supports the flower cluster.

4. **Eliminate Incorrect Options**:
- Other terms related to flowering structures include "torus" (the thickened part of the stem), "receptacle" (the part of the stem that supports the flower), and "calyx" (the outer part of the flower). These terms do not refer to the stalk of the inflorescence in onions.

5. **Conclude with the Correct Answer**:
- Therefore, the correct term for the stalk of the inflorescence in onions is **"scape."**

### Final Answer:
The stalk of the inflorescence in onion is called **scape**.

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