How many plants given below possesses unisexual flowers ?
Cucumber , maize, papaya , castor , Cycas, date palm.

Options

A. 4
B. 5
C. 6
D. 3

Answer

To determine how many of the given plants possess unisexual flowers, we need to analyze each plant one by one.

### Step-by-Step Solution:

1. **Understanding Unisexual Flowers**:
- Unisexual flowers are those that contain either male (stamens) or female (carpels) reproductive structures, but not both.

2. **List of Plants**:
- The plants we need to evaluate are: Cucumber, Maize, Papaya, Castor, Cycas, and Date Palm.

3. **Evaluating Each Plant**:
- **Cucumber**: Cucumber plants have unisexual flowers. They produce both male and female flowers on the same plant.
- **Maize**: Maize (corn) has unisexual flowers. The tassels are male flowers, and the ears are female flowers.
- **Papaya**: Papaya plants can have male, female, or hermaphrodite flowers, but the male and female flowers are unisexual.
- **Castor**: Castor plants have unisexual flowers. They produce male and female flowers on the same plant.
- **Cycas**: Cycas plants are gymnosperms and have unisexual reproductive structures. Male and female cones are produced separately.
- **Date Palm**: Date palms also have unisexual flowers. Male and female flowers are produced on separate plants.

4. **Counting the Unisexual Flowers**:
- All six plants listed (Cucumber, Maize, Papaya, Castor, Cycas, Date Palm) possess unisexual flowers.

5. **Conclusion**:
- Therefore, the total number of plants that possess unisexual flowers is **6**.

### Final Answer:
The number of plants that possess unisexual flowers is **6**.