Write the floral formula of Solanum nigrum.

Explanation

To write the floral formula of Solanum nigrum, we need to follow a systematic approach to identify and represent the different floral parts. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Identify the Floral Parts**:
- **Bracts (E)**: These are small leaf-like structures that support the flower.
- **Calyx (K)**: This consists of sepals. For Solanum nigrum, there are 5 sepals.
- **Corolla (C)**: This consists of petals. Solanum nigrum has 5 petals.
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