Which of these is an example for zygomorphic flower with imbricate aestivation?

Options

A. Calotropis
B. Mustard
C. Canna
D. Cassia

Answer

To answer the question "Which of these is an example for zygomorphic flower with imbricate aestivation?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand Zygomorphic Flowers**:
- A zygomorphic flower is one that can be divided into two equal halves or mirror images along a single plane. This means that if you draw a line through the middle of the flower, the two halves will be symmetrical.

2. **Identify Imbricate Aestivation**:
- Imbricate aestivation refers to the arrangement of petals in a flower where the margins of the petals overlap each other. In this arrangement, some petals are positioned externally while others are completely internal.

3. **Examples of Zygomorphic Flowers**:
- Common examples of zygomorphic flowers include orchids and members of the Fabaceae family, such as Cassia.

4. **Identify the Flower with Imbricate Aestivation**:
- Among the examples of zygomorphic flowers, Cassia is known for having imbricate aestivation. In Cassia flowers, the petals overlap in such a way that one petal is on the outside while another is tucked inside.

5. **Conclusion**:
- Therefore, the answer to the question is that Cassia is an example of a zygomorphic flower with imbricate aestivation.

### Final Answer:
Cassia