The modified stems of desert plants are called ______.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term used to describe the modified stems of desert plants.

2. **Identifying the Key Concept**: In desert plants, certain adaptations are necessary for survival due to the harsh, dry environment. One of these adaptations involves modifications of the plant's structure.

3. **Recognizing the Term**: The modified stems of desert plants are specifically known as "cladodes." Cladodes are flattened, photosynthetic stems that perform the function of leaves to help the plant carry out photosynthesis.

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