What are epiphytes? Explain their characteristic features.

Explanation

The plants which are found growing on other plants without harming them are called epiphytes. They are commonly found in tropical rain forest.
The epiphytic higher plant (Orchids) gets its nutrients and water from the atmosphere with the help of their hygroscopic roots which contain special type of spongy tissue called Velamen. So it prepares its own food and does not depend on the host. They use the host plant only for support and does not harm.