Epiphycation refers to the process by which certain plants, known as epiphytes, grow on other plants, typically trees, without drawing nutrients from them. This adaptation allows epiphytes to access sunlight and moisture in the forest canopy, where they can thrive in environments with limited soil. Common examples of epiphytes include orchids, ferns, and bromeliads. While they do not harm their host plants, they can contribute to the biodiversity of their ecosystems.