What characterizes a vegetated structure?

A vegetated structure is characterized by its integration of living plants within a built system, such as a retaining wall. This approach not only provides structural support but also enhances environmental benefits by promoting biodiversity, improving air quality, and managing stormwater runoff. The use of living plants helps in stabilizing soil, reduces erosion, and allows for better water absorption. In contrast, flood control systems focus on managing excess water without necessarily incorporating vegetation, decorative landscaping features emphasize aesthetic value without a functional structural aspect, and foundation support methods typically do not involve plant life or ecological considerations. Thus, the correct choice effectively captures the essence of a vegetated structure by highlighting its dual role in providing structural integrity and ecological function.