Welwitschia has reproductive structure in its juvenile stage .

Answer

**Step-by-Step Solution:**

1. **Identify the Plant**: The question refers to Welwitschia, which is a type of gymnosperm.

2. **Understand the Reproductive Structures**: Gymnosperms, including Welwitschia, have reproductive structures known as cones. These cones are the male and female reproductive organs.

3. **Determine Juvenile Stage Characteristics**: The juvenile stage of a plant is typically characterized by growth and development, but not necessarily by reproductive maturity.

4. **Evaluate Reproductive Timing**: For Welwitschia, it is noted that the male and female cones mature approximately 9 months after the plant's initial growth. This indicates that the plant does not have reproductive structures that are functional in the juvenile stage.

5. **Conclusion**: Since Welwitschia does not have reproductive structures that are active in its juvenile stage, the statement in the question is false.

**Final Answer**: The statement that Welwitschia has reproductive structures in its juvenile stage is false.

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