Among flowers of Calotropis, tulip, Sesbania, Asparagus,Colchicine, Sweet, pea, petunia,Indigofera, Mustard, Soyabean, Tobacco and groundnut how many plants have corolla with valvate aestivation.

Options

A. Five
B. Six
C. Seven
D. Eight

Answer

To determine how many plants among Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea, petunia, Indigofera, Mustard, Soybean, Tobacco, and Groundnut have corolla with valvate aestivation, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Corolla**: The collective term for the petals of a flower.
- **Aestivation**: The arrangement of petals or sepals in a flower bud before it opens.
- **Valvate Aestivation**: A type of aestivation where the petals or sepals are arranged such that their margins touch but do not overlap.

2. **Identify the Plants**:
- We need to analyze the listed plants: Calotropis, Tulip, Sesbania, Asparagus, Colchicine, Sweet pea, Petunia, Indigofera, Mustard, Soybean, Tobacco, and Groundnut.

3. **Classify Each Plant**:
- **Calotropis**: Valvate
- **Tulip**: Valvate
- **Sesbania**: Not Valvate (it has imbricate aestivation)
- **Asparagus**: Valvate
- **Colchicine**: Valvate
- **Sweet pea**: Not Valvate (it has papilionaceous flowers)
- **Petunia**: Valvate
- **Indigofera**: Not Valvate (it has papilionaceous flowers)
- **Mustard**: Valvate
- **Soybean**: Not Valvate (it has imbricate aestivation)
- **Tobacco**: Valvate
- **Groundnut**: Not Valvate (it has imbricate aestivation)

4. **Count the Plants with Valvate Aestivation**:
- The plants with valvate aestivation are: Calotropis, Tulip, Asparagus, Colchicine, Petunia, Mustard, and Tobacco.
- This gives us a total of **7 plants**.

5. **Conclusion**:
- Therefore, the number of plants that have corolla with valvate aestivation is **7**.