Keel is the characteristic feature of flower of

Options

A. Indigofera
B. Aloe
C. Tomato
D. Tulip

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Keel":**
- The term "keel" refers to a specific structure in certain flowers, particularly in relation to their petal arrangement.

2. **Identifying the Type of Estivation:**
- The keel is associated with a type of petal arrangement known as "vexillary estivation." In this arrangement, the petals are organized in a specific manner.

3. **Describing Vexillary Estivation:**
- In vexillary estivation:
- The largest petal is called the "standard."
- There are two smaller lateral petals known as "wings."
- The two smallest anterior petals are referred to as the "keel."

4. **Connecting Keel to Flower Families:**
- The presence of a keel is a characteristic feature of the flower family Fabaceae (also known as Leguminosae).

5. **Identifying Examples:**
- An example of a plant that exhibits this feature is Indigofera, which belongs to the Fabaceae family.

6. **Conclusion:**
- Therefore, the keel is a characteristic feature of the flower of the family Fabaceae.

**Final Answer:**
The keel is a characteristic feature of the flower of the Fabaceae family.

---