A runner of water with one thick internode, found in aquatic rosette plants like Eichhorina (water hyacinth) is called

Options

A. stolon
B. offset
C. both correct
D. trailer

Answer

To answer the question regarding the runner of water with one thick internode found in aquatic rosette plants like Eichhornia (water hyacinth), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Plant Structure**: Recognize that Eichhornia, commonly known as water hyacinth, is an aquatic plant that has a unique structure adapted to its environment.

2. **Identify the Type of Growth**: In aquatic plants, certain structures allow for vegetative reproduction and adaptation to water. One such structure is the runner, which helps in spreading the plant.

3. **Define the Term 'Offset'**: An offset is a type of runner that has a thick internode and arises from the axial leaf. It is a lateral branch that grows horizontally, allowing the plant to propagate.

4. **Characteristics of Offsets**: Offsets typically have short internodes and each node bears a rosette of leaves. This is characteristic of many aquatic plants, including Eichhornia.

5. **Conclusion**: Based on the understanding of the structure and function of the runner in Eichhornia, we can conclude that the correct term for the runner of water with one thick internode found in aquatic rosette plants is **"offset."**

### Final Answer:
The runner of water with one thick internode found in aquatic rosette plants like Eichhornia (water hyacinth) is called **offset**.

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