Mention the unique flowering phenomenon exhibited by Strobilanthus kunthiana (neelakuranji).

Explanation

**Step-by-Step Solution:**

1. **Identify the Unique Flowering Phenomenon**: The unique flowering phenomenon exhibited by Strobilanthus kunthiana, commonly known as neelakuranji, is its synchronized flowering. This species flowers only once every 12 years.

2. **Understand the Synchronization**: The flowering of neelakuranji is not random; it occurs in a synchronized manner across large populations. This means that when one plant flowers, many others in the same region will also bloom at the same time.

3. **Significance of the Phenomenon**: This synchronized flowering is believed to be an evolutionary adaptation. It helps in maximizing pollination and seed set, as the abundance of flowers at the same time attracts more pollinators.

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