In _________flower is irregular in symmetry.

Options

A. Cassia
B. Canna
C. Chilli
D. Gulmohar

Answer

**Step-by-Step Solution:**

1. **Understanding Flower Symmetry:**
- Flowers can be classified based on their symmetry into two main types:
- **Zygomorphic (irregular symmetry)**: These flowers can be divided into two similar halves only along one specific vertical plane.
- **Actinomorphic (regular symmetry)**: These flowers can be divided into two similar halves along multiple planes.

2. **Analyzing the Options:**
- **Option 1: Cassia**
- Cassia flowers are zygomorphic, meaning they can be divided into two similar halves along one vertical plane. Therefore, this option is incorrect for irregular symmetry.

- **Option 2: Canna**
- Canna flowers cannot be divided into two similar halves along any vertical plane, indicating that they are irregular in symmetry. This option is correct.

- **Option 3: Chili**
- Chili flowers are actinomorphic, meaning they can be divided into similar halves along multiple planes. Thus, this option is incorrect.

- **Option 4: Gulmohar**
- Gulmohar flowers are also zygomorphic, which means they can be divided into two similar halves along one vertical plane. Hence, this option is incorrect.

3. **Conclusion:**
- The flower that is irregular in symmetry is found in **Canna**.

**Final Answer: In Canna, the flower is irregular in symmetry.**

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