What is a offset ? Give examples.

Explanation

**Step-by-Step Solution:**

1. **Definition of Offset:**
- An offset is a type of stem modification that occurs in certain plants. It is characterized by a lateral branch that has a short internode.

2. **Structure of Offset:**
- Each internode of an offset bears a rosette of leaves, which means that the leaves are arranged in a circular pattern at the top of the stem.
- Additionally, offsets have a tuft of roots that emerge from the base of the stem.
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