Plasticity exhibited by Delphinium is called

Options

A. habitual heterophylly.
B. developmental heterophylly.
C. ecological heterophylly
D. environmental heterophylly

Answer

To solve the question regarding the plasticity exhibited by Delphinium, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Plasticity**:
- Plasticity in plants refers to their ability to change their morphology or physiology in response to environmental conditions or different life stages.

2. **Identify the Type of Heterophylly**:
- Heterophylly is the phenomenon where a single plant exhibits different types of leaves at different stages of growth or in response to environmental conditions.

3. **Differentiate Types of Heterophylly**:
- There are various types of heterophylly:
- **Habitual Heterophylly**: Changes in leaf shape due to genetic factors.
- **Developmental Heterophylly**: Changes in leaf shape due to different developmental stages of the plant.
- **Ecological Heterophylly**: Changes in leaf shape due to ecological factors.
- **Environmental Heterophylly**: Changes in leaf shape due to environmental conditions.

4. **Relate to Delphinium (Larkspur)**:
- Delphinium, commonly known as larkspur, exhibits developmental heterophylly, where the juvenile leaves differ in shape from the mature leaves.

5. **Select the Correct Answer**:
- Based on the understanding that Delphinium shows developmental changes in leaf shape as it matures, the correct answer is **B. Developmental Heterophylly**.

### Final Answer:
The plasticity exhibited by Delphinium is called **Developmental Heterophylly** (Option B).