Indigofera belongs to family

Options

A. Malvaceae
B. Fabaceae
C. Brassicaceae
D. Solanaceae

Answer

To determine the family to which Indigofera belongs, we can follow these steps:

### Step 1: Identify the Options
The question provides four options:
- A) Malvaceae
- B) Fabaceae
- C) Dracaenaceae
- D) Solanaceae

### Step 2: Analyze the Characteristics of Indigofera
Indigofera is known for being a source of dye. To identify its family, we need to examine its floral structure.

### Step 3: Examine the Flower Structure
- **Calyx**: Indigofera has five sepals that are fused.
- **Corolla**: The petals exhibit vexillary estivation, which means there is one standard petal, two wings, and two keels.

### Step 4: Understand Floral Formula
The floral formula indicates:
- **Ectenomorphic**: The flower has a specific structure.
- **Zygomorphic**: The flower has bilateral symmetry.
- **Bisexual**: The flower contains both male and female reproductive organs.

### Step 5: Analyze Androecium and Gynoecium
- **Androecium**: The stamens are diadelphous, meaning they are arranged in two bundles (9 + 1).
- **Gynoecium**: The ovary is superior and monocarpillary.

### Step 6: Identify the Family
Based on the characteristics outlined:
- The presence of vexillary estivation, diadelphous stamens, and the structure of the flower aligns with the characteristics of the Fabaceae family.

### Conclusion
Thus, Indigofera belongs to the **Fabaceae** family. Therefore, the correct answer is **Option B**.

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