The small green leaves at the base of flowers are known as ------------.

Explanation

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks about the small green leaves located at the base of flowers.

2. **Understand the Structure of a Flower**: A flower has various parts, and at its base, there are small green leaves.

3. **Recall the Terminology**: The small green leaves at the base of the flower are specifically referred to in botanical terms.

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