Name the type of stem tendril found in Passiflora, Luffa, Vitis.

Explanation

### Step-by-Step Solution:

1. **Understanding Stem Tendrils**:
- Stem tendrils are specialized modifications of the stem that help plants climb. They are typically slender, coiling structures that can wrap around supports.

2. **Identifying the Plants**:
- The question asks about three specific plants: Passiflora, Luffa, and Vitis.

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