When petiole bears leaflets at its tip, it is a

Options

A. simple leaf
B. pinnate compound leaf
C. palmate compound leaf
D. isobilateral leaf

Answer

To answer the question "When petiole bears leaflets at its tip, it is a:", we need to analyze the types of leaves and their characteristics.

### Step-by-Step Solution:

1. **Understanding Leaf Types**:
- There are two main types of leaves: **simple leaves** and **compound leaves**.
- A **simple leaf** has a single blade and does not have leaflets. The petiole (the stalk that attaches the leaf blade to the stem) is at the base of the leaf.

2. **Identifying Compound Leaves**:
- A **compound leaf** consists of multiple leaflets. These leaflets can be arranged in different ways.
- There are two primary types of compound leaves:
- **Pinnate Compound Leaf**: Leaflets are arranged along the sides of a central axis (rachis).
- **Palmate Compound Leaf**: Leaflets are attached at a single point at the tip of the petiole.

3. **Analyzing the Question**:
- The question specifically mentions that the petiole bears leaflets at its tip. This description fits the definition of a **palmate compound leaf**, where all leaflets originate from the same point at the end of the petiole.

4. **Eliminating Other Options**:
- **Simple Leaf**: Incorrect, as it does not have leaflets.
- **Pinnate Compound Leaf**: Incorrect, as leaflets are not at the tip but arranged along the sides.
- **Isobilateral Leaf**: Incorrect, as this term refers to a leaf with equal stomatal distribution on both sides, not related to leaflets.

5. **Conclusion**:
- The correct answer to the question is **palmate compound leaf**, as it is characterized by having leaflets at the tip of the petiole.

### Final Answer:
The correct answer is **palmate compound leaf**.