what are liana plants
Overview. Lianas are vinelike plants that grow in the rain forest and require some type of support to grow toward the canopy of the forest, where more light occurs. Lianas play an important role in rain forests, where they make up about 20 percent of the woody plants.rowth Habits. Very few plants grow at ground level in the rain forest because the area receives only 1 percent to 2 percent of available sunlight. Liana, however, becomes rooted in the soil at ground level as a small shrub.