Which one of the following plant shows unusual flowering phenomenon?

Options

A. Bamboo and banana
B. Banana and neelakarauji
C. Bamboo and Strobilanthus kunthiana
D. All of the above

Answer

To answer the question "Which one of the following plants shows unusual flowering phenomenon?", we can follow these steps:

### Step 1: Understand the Question
The question asks about plants that exhibit unusual flowering patterns. This means we need to identify plants that have unique or rare flowering behaviors.

### Step 2: Analyze the Options
The options provided are:
1. Bamboo and Banana
2. Banana and Neelakaroji
3. Bamboo and Strobilanthus quintiana
4. All of the above

### Step 3: Research Each Option
- **Bamboo**: It is known to flower only once in its lifetime, which can be between 50 to 100 years. After flowering, it produces a large number of fruits and then dies. This is indeed an unusual flowering phenomenon.

- **Banana**: While bananas do have unique reproductive traits, such as parthenocarpy (the development of fruit without fertilization), they do not have an unusual flowering phenomenon like bamboo or Strobilanthus quintiana.

- **Strobilanthus quintiana (Neelakaroji)**: This plant flowers only once every 12 years, which is also considered an unusual flowering phenomenon.

### Step 4: Eliminate Incorrect Options
- **Bamboo and Banana**: Incorrect because banana does not exhibit an unusual flowering phenomenon.
- **Banana and Neelakaroji**: Incorrect for the same reason as above.
- **All of the above**: Incorrect since not all options exhibit unusual flowering.

### Step 5: Identify the Correct Answer
The only option that includes plants known for their unusual flowering phenomena is **Bamboo and Strobilanthus quintiana**.

### Conclusion
Thus, the correct answer is **Bamboo and Strobilanthus quintiana**.

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