Which of these biological terms describe plants that grow on the surface of other plants?

An epiphyte is a plant or plant-like organism that grows on the surface of another plant especially one that is not parasitic.

Most epiphytes are found in moist tropical areas, where their ability to grow above ground level provides access to sunlight in dense shaded forests and exploits the nutrients available from leaf and other organic debris that collects high in the tree canopy.

The majority of epiphytic plants are angiosperms (flowering plants); they include many species of orchids, tillandsias, and other members of the pineapple family (Bromeliaceae). Mosses, ferns, and liverworts are also common epiphytes and are found in both tropical and temperate regions. While epiphytes are uncommon in arid environments, ball moss (Tillandsia recurvata) is a notable exception and can be found in coastal deserts in Mexico, where it receives moisture from marine fog.

The plants on which epiphytes grow are called phorophytes.