Leaf juice of plant which can kill lice is

Options

A. Dracaena
B. Gloriosa
C. Colchicum
D. Hyacinthus.

Answer

To solve the question "Leaf juice of plant which can kill lice is," we will analyze the options provided and identify the correct plant.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the leaf juice of a specific plant that can kill lice. Lice are small parasitic insects that can infest the hair and scalp of humans.

2. **Review the Options**: The options given are:
- Option 1: Dracaena
- Option 2: Gloriosa
- Option 3: Colchicum
- Option 4: Hyacinthus

3. **Analyze Each Option**:
- **Option 1: Dracaena**: This plant is known to be toxic to pets (cats and dogs) due to the presence of saponins. However, it is not known for killing lice.
- **Option 2: Gloriosa**: This plant is highly poisonous due to its constituents, colchicine and gloriosine, which affect proliferating cells. It does not specifically target lice.
- **Option 3: Colchicum**: This plant, particularly Colchicum autumnale, belongs to the family Colchicaceae and is known for its toxicity due to the presence of colchicine. The leaf juice of this plant can kill lice, making it a strong candidate.
- **Option 4: Hyacinthus**: The bulbs of this plant are poisonous and can cause skin irritation, but they do not have properties that kill lice.

4. **Identify the Correct Answer**: After analyzing all options, it is clear that **Option 3: Colchicum** is the correct answer, as its leaf juice can kill lice.

5. **Conclusion**: The leaf juice of the plant that can kill lice is **Colchicum**.