Plant climbing is a term used to describe the ability of certain plants to climb up structures or other plants. Two examples of plants that can climb are vines and lianas. Vines are plants that use tendrils, twining stems, or aerial roots to climb up walls, fences, or other structures. Lianas are woody vines that use their stems to climb up trees or other plants. Both vines and lianas are important components of tropical rainforest ecosystems, providing food and shelter for many animals.