Terrestrial plants are those that grow on land, as opposed to aquatic plants that thrive in water. They include a wide variety of species, such as trees, shrubs, grasses, and flowering plants. These plants play a crucial role in ecosystems by providing oxygen, food, and habitat for many organisms. Most terrestrial plants have roots that anchor them in the soil, stems that support their structure, and leaves that capture sunlight for photosynthesis. They adapt to different environments, from deserts to forests, and are essential for maintaining the balance of ecosystems and supporting life on Earth.