Leaf tendril is not seen in

Options

A. Pisum
B. Lathyrus
C. Cucurbits
D. Nepenthes

Answer

**Step-by-Step Solution:**

1. **Understanding Leaf Tendrils**: Leaf tendrils are modified leaf structures that help plants climb by providing mechanical support. They are typically thin, wiry, and coiled.

2. **Identifying Plants with Leaf Tendrils**:
- **Pisum (Pea Plant)**: In Pisum, the upper leaflets are modified into tendrils that help the plant climb.
- **Lathyrus (Sweet Pea)**: Similar to Pisum, the leaflets in Lathyrus are also modified into tendrils for climbing.
- **Nepenthes (Pitcher Plant)**: In Nepenthes, the leaves are modified into tendrils that assist in climbing.

3. **Identifying the Exception**:
- **Cucurbita (Squash or Gourd)**: In Cucurbita, the climbing support is provided by stem tendrils rather than leaf tendrils. This means that the leaves do not modify into tendrils.

4. **Conclusion**: Since leaf tendrils are not found in Cucurbita, the correct answer to the question "Leaf tendril is not seen in" is **Cucurbita**.

**Final Answer**: Cucurbita

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