Vines

Definition: Like trees and shrubs, "vines" are a plant group whose definition is based on the manner in which they grow. A plant is a vine, by definition, if its stem is too weak to support its vertical growth, meaning that it will either seek such support from other sources (e.g., arbors, pergolas, trellises, latticework, other plants, cliff faces) or simply be content to trail along the ground. Some types are more active than others in seeking support. Consequently, vines are often classified as either climbers or creepers.