Seedling of Acacia have

Options

A. Simple leaves
B. Compound leaves
C. Stipular spines
D. Both B and C

Answer

### Step-by-Step Solution:

1. **Identify the Plant Family**: Acacia belongs to the family Fabiaceae. This is important as it helps categorize the plant and understand its characteristics.

2. **Understand Leaf Structure**: The seedlings of Acacia have pinnately compound leaves. This means that the leaflets are arranged along both sides of a common axis (rachis), resembling a feather.

3. **Define Pinnately Compound Leaves**: In a pinnately compound leaf, the leaflets are attached to a central stem (petiole), which can sometimes be flattened and extended to form structures known as phyllodes.

4. **Function of Phyllodes**: The flattened petiole (phyllodes) serves a purpose; it helps in reducing excess sunlight exposure and minimizing transpiration, which is the loss of water from the plant.

5. **Thorn Modification**: Acacia also has swollen thorns, which are a modification of the stipules (small leaf-like structures at the base of the leaf stalk). These thorns serve as a defense mechanism against herbivores.

6. **Conclusion**: Therefore, the seedlings of Acacia exhibit both compound leaves and stipular spines (thorns), making the correct answer both B (compound leaves) and C (stipular spines).

### Final Answer:
The seedlings of Acacia have both compound leaves and stipular spines.

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