Name any plant theat caused pollen allergy

Answer

**Step-by-Step Solution:**

1. **Identify the Question:** The question asks for a plant that causes pollen allergy.

2. **Recall Relevant Information:** Pollen allergies are often caused by certain plants that release pollen into the air, which can trigger allergic reactions in sensitive individuals.

3. **Select a Plant:** One well-known plant that causes pollen allergy is Parthenium hysterophorus, commonly known as Parthenium or carrot grass.

4. **Provide Context:** Parthenium is an invasive species that was introduced to India as a contaminant with imported wheat. Its pollen is a significant allergen for many people.

5. **Conclude the Answer:** Therefore, the answer to the question is Parthenium (carrot grass).

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