How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram, and trunip have stamens of different lengths in their flowers?

Options

A. three
B. four
C. five
D. six

Answer

To determine how many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram, and turnip have stamens of different lengths in their flowers, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Stamens**:
- Stamens are the male reproductive organs of flowering plants. They consist of a filament and an anther. The length of the stamens can vary among different species.

2. **Identify the Plants**:
- The plants in question are: Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram, and turnip.

3. **Research Each Plant's Flower Structure**:
- **Indigofera**: Typically has stamens of equal length.
- **Sesbania**: Generally has stamens of equal length.
- **Salvia**: Known for having stamens of different lengths.
- **Allium**: Usually has stamens of equal length.
- **Aloe**: Typically has stamens of equal length.
- **Mustard**: Has stamens of different lengths (4 long and 2 short).
- **Groundnut**: Generally has stamens of equal length.
- **Radish**: Has stamens of different lengths (4 long and 2 short).
- **Gram**: Typically has stamens of equal length.
- **Turnip**: Has stamens of different lengths (4 long and 2 short).

4. **Count the Plants with Different Lengths**:
- From the analysis, the plants with stamens of different lengths are:
- Salvia
- Mustard
- Radish
- Turnip
- This gives us a total of **4 plants**.

5. **Conclusion**:
- The answer to the question is that **4 plants** among the given list have stamens of different lengths.

### Final Answer:
**4 plants (Salvia, Mustard, Radish, Turnip) have stamens of different lengths.**

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