Select the odd plant hypogonous flowers.

Options

A. Mustard
B. Rose
C. China Rose
D. Petunia

Answer

To solve the question of selecting the odd plant with hypogynous flowers from the given options (mustard, rose, china rose, petunia), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Hypogynous Flowers**:
- Hypogynous flowers are those in which the gynoecium (the female reproductive part) is positioned above all other floral parts. This means the ovary is superior.

2. **Identify the Examples of Hypogynous Flowers**:
- Some common examples of hypogynous flowers include mustard, brinjal, china rose, lupine, petunia, tomato, and tulip.

3. **Understand the Definition of Perigynous Flowers**:
- Perigynous flowers have the gynoecium in the center, with other floral parts located around it at the same level. In this case, the ovary is considered half inferior.

4. **Identify the Examples of Perigynous Flowers**:
- An example of a perigynous flower is the rose.

5. **Analyze the Options Given**:
- The options provided are: mustard, rose, china rose, and petunia.
- Mustard, china rose, and petunia are examples of hypogynous flowers.
- Rose is an example of a perigynous flower.

6. **Select the Odd Plant**:
- Since rose is the only flower listed that is not hypogynous, it is the odd one out.

### Final Answer:
- The odd plant with hypogynous flowers is **rose**.