Which of the following is a modified green stem

Options

A. Rhizome
B. Bulbil
C. Phyllode
D. Phylloclade

Answer

To determine which of the given options is a modified green stem, let's analyze each option step by step:

### Step 1: Understand the Options
1. **Rhizome**: A rhizome is a type of underground stem that grows horizontally. It is not green and primarily serves as a storage organ and a means of vegetative reproduction.

2. **Bulbil**: A bulbil is a small bulb-like structure that can develop in the axils of leaves or at the ends of stems. It is not a stem but rather a reproductive structure.

3. **Phyllode**: A phyllode is a flattened petiole that resembles a leaf but is not a modified stem. It is typically green and performs photosynthesis.

4. **Phylloclade**: A phylloclade is a modified stem that is flattened and green, resembling a leaf. It arises from the axil of leaves that have fallen off and has distinct nodes and internodes, allowing it to perform photosynthesis.

### Step 2: Identify the Correct Answer
Among the options provided, the only structure that is a modified green stem is **Phylloclade**.

### Conclusion
The correct answer is **Phylloclade**.

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