The air plant, also known as Tillandsia, is a type of plant that is unique in that it doesn't require soil to grow. Some characteristics of air plants include: 1. They absorb water and nutrients through their leaves instead of roots. 2. They can grow in a variety of environments such as trees, rocks, and even on wires. 3. They come in many shapes, sizes, and colors. 4. They can be mounted on various objects such as driftwood, seashells, and terrariums. 5. They are low-maintenance plants that require only occasional misting or soaking. 6. They can be used for decorative purposes and are popular in terrariums, hanging planters, and other modern decor applications.