Name the family in which sepals and petals are not differentiated

Options

A. Poaceae and Asteraceae
B. Liliaceae and Solanaceae
C. Poaceae and Liliaceae
D. Asteraceae and Solanaceae.

Answer

To solve the question "Name the family in which sepals and petals are not differentiated," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the family of flowering plants where sepals and petals cannot be distinguished from each other. This characteristic is important in plant taxonomy.

2. **Identify Key Terms**:
- **Sepals**: The outer parts of a flower that protect the developing bud.
- **Petals**: The colorful parts of a flower that attract pollinators.
- **Not differentiated**: This means that the sepals and petals look similar or are indistinguishable.

3. **Analyze the Options**: The options given are:
- A) Poaceae and Asteraceae
- B) Liliaceae and Solanaceae
- C) Poaceae and Liliaceae
- D) Asteraceae and Solanaceae

4. **Recall Characteristics of Plant Families**:
- **Poaceae** (Grass family): In this family, sepals and petals are not differentiated; they are often referred to as "tepals."
- **Liliaceae** (Lily family): This family also has flowers where sepals and petals are not distinctly different, often also referred to as tepals.
- **Asteraceae** (Daisy family) and **Solanaceae** (Nightshade family): In these families, sepals and petals are typically differentiated.

5. **Select the Correct Families**: Based on the characteristics identified, the families where sepals and petals are not differentiated are Poaceae and Liliaceae.

6. **Conclude the Answer**: Therefore, the correct answer to the question is option C: Poaceae and Liliaceae.

### Final Answer:
The family in which sepals and petals are not differentiated is **Poaceae and Liliaceae**.

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