Which is not a characteristic of a compound leaf?

Options

A. Lamina is divided into leaflets
B. Stipules are present at base of leaflets
C. Main vein forms rachis
D. Leaflets develop simultaneously

Answer

### Step-by-Step Solution:

1. **Understanding Compound Leaf**: A compound leaf is defined as a leaf in which the lamina (leaf blade) is divided into multiple distinct leaflets. This means that instead of a single blade, the leaf consists of several smaller leaf-like structures.

2. **Identifying Characteristics**: The characteristics of a compound leaf include:
- The lamina is divided into leaflets.
- There is a common axis known as the rachis, which connects the leaflets.
- A bud is present at the axil of the petiole (the stalk that attaches the leaf to the stem).
- Stipules (small leaf-like structures) are typically absent at the axil of the leaflets.

3. **Analyzing the Options**: The question asks which statement is NOT a characteristic of a compound leaf. We need to evaluate the given statements:
- **Statement 1**: The lamina is divided into leaflets. (True)
- **Statement 2**: Stipules are present at the base of leaflets. (False)
- **Statement 3**: The main vein forms a rachis. (True)
- **Statement 4**: The leaflets develop simultaneously. (True)

4. **Conclusion**: The statement that is NOT a characteristic of a compound leaf is **Statement 2**, which claims that stipules are present at the base of leaflets. This is incorrect as stipules are not found at the base of leaflets in compound leaves.

### Final Answer:
The characteristic that is NOT associated with a compound leaf is: **Stipules are present at the base of leaflets.**

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